Krontalk

Chronos => Software Dev => Topic started by: sanjay on September 01, 2021, 12:36:59 PM

Title: Chronos V0.7.0 Full Release
Post by: sanjay on September 01, 2021, 12:36:59 PM
Hey Everyone,

We're happy to announce a new release of software for both the Chronos 1.4 and Chronos 2.1 cameras. This version will benefit owners of both models, as we have improved save speeds and reliability, as well as image quality on the 2.1.

We spent more time setting up image validation tests, and working with some of our users in the field to determine ideal settings for the Chronos 2.1 image sensor, so we hope the benefit is extended to you in this update.

Additionally, the Network Update option is available again, so this should be a fast and easy update for anyone on version 0.6.x. If you perform an update by connecting your camera to the internet via the Ethernet port, and then accessing the Network Update feature accessible through Util -> Storage -> Apply Software Update -> Check for Updates, you will not need to re-calibrate your camera to continue using it as long as you were previously on 0.6.x. You may still use the Network Update function to upgrade from 0.4 or 0.5, but please see the Calibration section of the Release Notes to verify correct re-calibration after the update.

I'll summarize the improvements and changes here, but please also see the official Release Notes here: https://www.krontech.ca/wp-content/uploads/2021/09/RE-PDEV-10012-0.7.0-Release-Notes.pdf (https://www.krontech.ca/wp-content/uploads/2021/09/RE-PDEV-10012-0.7.0-Release-Notes.pdf)


New Features and Improvements

Save Performance and Reliability:

Trigger/IO Settings:

Webpage Improvements:

Misc. Bug Fixes:

Chronos 2.1 Image Quality:

CinemaDNG Metadata:



Known Issues, Updating Your Camera, and Calibration:
Please see the list attached in the Release Notes.


Updated User Manual and Datasheets
Please see either the 1.4 Resources or 2.1 Resources page on our website: https://www.krontech.ca/ (https://www.krontech.ca/)


As always, please feel free to reach out to us at support@krontech.ca for more urgent support inquiries. Thanks!
Title: Re: Chronos V0.7.0 Full Release
Post by: NiNeff on September 01, 2021, 01:00:01 PM
Nice!
With the stability apparently bneing fixes, I'm going to upgrade to 0.7 from 0.5 soon.

By the way: The PDF Release Notes state version 0.6 in the upper left ;)
Title: Re: Chronos V0.7.0 Full Release
Post by: Nikon1 on September 01, 2021, 01:31:44 PM
Well, i am still out of Empty µSD-Cards, now i actually need to go and get some for this.
 I did order some, but they still didn't arrive yet...  Also a bit short on time currently, but will for sure install it as soon as i can.
 Thanks as always for further improving Camera and Software!
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 01, 2021, 02:26:34 PM
Thanks sanjay !!!

Do you have any backlog of things to work on? So we can have an idea what's on the pipeline, softwarewise?

Title: Re: Chronos V0.7.0 Full Release
Post by: Bian on September 01, 2021, 10:07:52 PM
Thanks, a great step to increase the picture quality at lower resolutions!!
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 02, 2021, 07:28:52 AM
Did a quick test yesterday with 0.7.0, as far as speed times, it is quite an improve!!! Well Done Krontech!!!

Usually I get 12fps at start, going to as low as 8 or 7 fps when saving .DNG on 1280x1024 pixels (using Chronos 1.4)

Yesterday I tested the same resolution and speeds were at start 40fps, after a while it kept going from 25 to 10fps, not a 25fps steady rate, but much faster saving at all...

Not sure the speed oscilation comes from my SSD, cable or camera itself, I'm using a SSD and the e-SATA cable.

So far very happy with the new release!!!

Thank again sanjay!!!
Title: Re: Chronos V0.7.0 Full Release
Post by: BobbyKurtz on September 02, 2021, 12:03:31 PM
On shoot today and tested yesterday. Wish this would have come out a day earlier as currently saving all 11 seconds CinemaDNG on 2.1 to a 16GB SD card. Have yet to be able to get network or EsaTa working correctly or for it to recognize 64gb u3 cards.

Any fixes for this in the speed improvements?
Title: Re: Chronos V0.7.0 Full Release
Post by: sanjay on September 02, 2021, 03:29:46 PM
Nice!
With the stability apparently bneing fixes, I'm going to upgrade to 0.7 from 0.5 soon.

By the way: The PDF Release Notes state version 0.6 in the upper left ;)
Ah yes, thank you for catching that!


Thanks sanjay !!!

Do you have any backlog of things to work on? So we can have an idea what's on the pipeline, softwarewise?


For the moment, there isn't much in the pipeline for 1.4/2.1 software updates aside from bugfixes as they come up. We'll usually give the latest release ~2 months to get out onto cameras in the field, and then work with our Support and Sales & Marketing teams to look at our maintenance priorities for the 1.4/2.1.


On shoot today and tested yesterday. Wish this would have come out a day earlier as currently saving all 11 seconds CinemaDNG on 2.1 to a 16GB SD card. Have yet to be able to get network or EsaTa working correctly or for it to recognize 64gb u3 cards.

Any fixes for this in the speed improvements?

Personally wasn't aware of the issue with 64GB u3 cards, but I will ask the team. It may be helpful to send us a support email about this one as well.
Title: Re: Chronos V0.7.0 Full Release
Post by: Photopage on September 02, 2021, 11:15:23 PM
thanks Sanjay,
Perfect timing, I'm about to start a series of shots with very light backgrounds and was worried about the magenta cast in highlights...
Great to have the Ethernet update back, so easy!
Cheers,
Col
Title: Re: Chronos V0.7.0 Full Release
Post by: weatherproductions on September 03, 2021, 02:21:27 AM
Thanks Krontech,

i tested it yesterday, now i get between 13 and 17+ fps saving speed on the 2.1 in 1080p DNG, average speed something around 15-16fps. With older software it was something around 10fps!

Great update so far!
Title: Re: Chronos V0.7.0 Full Release
Post by: BobbyKurtz on September 03, 2021, 01:14:58 PM
So I was able to get a SanDisk 64GB u3 card to work. I get a popup message when I insert the card that says there is no High speed media available.  This was making me think it did not support it but was able to write to it.  This was still on 0.6.0, but upgraded to 0.7.0 last night and will try again.

I was unable to get network update to work but was sharing a wifi connection from Mac Book Pro via 2.5G ethernet adapter so will try again with direct ethernet. 

Still trying to get Network SMB saving and eSATA saving working.  Thank you.

Personally wasn't aware of the issue with 64GB u3 cards, but I will ask the team. It may be helpful to send us a support email about this one as well.
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 04, 2021, 02:30:39 AM
Thanks! 0.7.0 is very nice!
My camera is 2.1, and I always use 0.5.1.

In 0.7.0, especially when saving as H.264, the color is very beautiful.
On the other hand, I feel that it has become very difficult to handle the colors of CinemaDNG.
I'm thinking about shifting to 0.7.0 and shooting H.264 to the main.

Thank you.
Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 04, 2021, 06:55:11 PM
Hello Everyone,

Just upgraded to V0.7.0 yesterday and there's a color shift of the white balance while saving in Cinema DNG. Saving in H.264 is fine. Does anyone have the same problem? No matter how I set the white balance, the color is off saving in Cinema DNG. I.ve attached 2 screen cap for comparison.
Title: Re: Chronos V0.7.0 Full Release
Post by: clkdiv on September 05, 2021, 01:34:08 AM
Hello girls and guys! I really wonder what happened to the horizontal banding problem when having strong contrast in the scene. I don't have the camera here right now. The problem was discussed here (https://forum.krontech.ca/index.php?topic=637.msg4248#msg4248) and here (https://forum.krontech.ca/index.php?topic=665.msg4455#msg4455).

Some experiences already? Thanks!
Title: Re: Chronos V0.7.0 Full Release
Post by: Nikon1 on September 05, 2021, 01:59:56 AM
Hello girls and guys! I really wonder what happened to the horizontal banding problem when having strong contrast in the scene. I don't have the camera here right now. The problem was discussed here (https://forum.krontech.ca/index.php?topic=637.msg4248#msg4248) and here (https://forum.krontech.ca/index.php?topic=665.msg4455#msg4455).

Some experiences already? Thanks!

 Bought an Micro SD and installed 0.7.0 already by now, but still didnt have time to do in-depth testing so far. The Banding got improved from what i can tell, for some Settings even by a lot, but is still there on some others. Like the Release notes say, it got improved, but still is not completely gone. Quite a bit better though overall. Once i managed to do any meaningful amount of testing on this and other Aspects of Image Quality on this Software Release, i will try to share Results here.
Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 05, 2021, 07:44:07 PM
Thanks! 0.7.0 is very nice!
My camera is 2.1, and I always use 0.5.1.

In 0.7.0, especially when saving as H.264, the color is very beautiful.
On the other hand, I feel that it has become very difficult to handle the colors of CinemaDNG.
I'm thinking about shifting to 0.7.0 and shooting H.264 to the main.

Thank you.

Hello Takashima! I saw a clip from Youtube Channel, 【Slow Motion】キアゲハの求愛【Chronos 2.1 Highspeed】, may I ask, is the color shift from Cinema DNG only? Because I have this problem after upgrading to V0.7.0. Thank you very much for your time.
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 05, 2021, 11:19:22 PM
Hello Takashima! I saw a clip from Youtube Channel, 【Slow Motion】キアゲハの求愛【Chronos 2.1 Highspeed】, may I ask, is the color shift from Cinema DNG only? Because I have this problem after upgrading to V0.7.0. Thank you very much for your time.

Hello Tiny san. Thank you for watching my YouTube video!
I also have trouble with Cinema DNG, after upgrading to V0.7.0. As Tiny-san said, DNG color is very very shallow. I tried various things in Lightroom, such as increasing the saturation, adjusting the color temperature and Tint, but I could not get the color as I wanted.
------ I can do well with 0.5.1.

But when I recorded it in H.264, I got a very natural and beautiful color video. I've been recording with CinemaDNG for a long time, but with 0.7.0, I feel that switching to H.264 seems to make me happier.

The following two movies both have some color adjustments in Finalcut Pro.

↓Cinema DNG, Ver.0.7.0   Color is strange.
https://www.youtube.com/watch?v=bZ5VMazF788

↓H.264, Ver.0.7.0
https://www.youtube.com/watch?v=G94gvbVhOIg

Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 06, 2021, 04:33:02 AM
Hello Takashima! I saw a clip from Youtube Channel, 【Slow Motion】キアゲハの求愛【Chronos 2.1 Highspeed】, may I ask, is the color shift from Cinema DNG only? Because I have this problem after upgrading to V0.7.0. Thank you very much for your time.

Hello Tiny san. Thank you for watching my YouTube video!
I also have trouble with Cinema DNG, after upgrading to V0.7.0. As Tiny-san said, DNG color is very very shallow. I tried various things in Lightroom, such as increasing the saturation, adjusting the color temperature and Tint, but I could not get the color as I wanted.
------ I can do well with 0.5.1.


But when I recorded it in H.264, I got a very natural and beautiful color video. I've been recording with CinemaDNG for a long time, but with 0.7.0, I feel that switching to H.264 seems to make me happier.

The following two movies both have some color adjustments in Finalcut Pro.

↓Cinema DNG, Ver.0.7.0   Color is strange.
https://www.youtube.com/watch?v=bZ5VMazF788

↓H.264, Ver.0.7.0
https://www.youtube.com/watch?v=G94gvbVhOIg



Hello Takashima san. Thank you very much for your time! I'm having the exact same problem like both your clips. I've also tried tweaking the color temperature and tint, no luck to getting the color of cinema DNG files close to the H.264 ones. I'm switching back to V0.6.0 for the time being. Thanks again Takashima san for your time.
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 06, 2021, 06:01:54 AM
I also have problems with tint on DNG files using 0.7.0, it's really hard to do white balance, something is off... (uploaded a sample)

not sure what to do now. the saving speeds on 0.7.0 are way better, but I don't like H.264...

You just can't have it all, right? lol

Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 06, 2021, 08:44:58 AM
Hi guys,

I wasn't allowed to share my experience with the 0.7 version of the software before it was released, but now that it's out, I'm sure they won't mind me sharing my initial findings.

I haven't had the time yet to properly evaluate the release version of 0.7, but I did do some work helping the Kron folks evaluate an alpha version of the software and the color change with Cinema DNG was present there too.

Here is a link to a video showing my findings:

https://youtu.be/a4dAjT9dE0k

The short answer is that Cinema DNG can be color corrected properly with 0.7, but it's harder and you really need to use a color chart and know how to manipulate the hue/hue and hue/sat histograms using a VectorScope.

I would really recommend watching Gerald Undone's video on color correction, as this type of manipulation is required to get the best out of Cinema DNG (and H.264 for that matter):

https://youtu.be/71ebKrT2XlY


IMHO, the 0.7 release is a massive improvement over 0.6.  Solving the pink cast problem and at least most of the gain problems at lower resolutions is a HUGE deal.

One of my recommendations to them was to publish a LUT for both H.264 and Cinema DNG footage to give folks a good starting point.  They said they are working to find a color scientist that can help them out with this.   I expect they'll come up with something soon.

Once I have time to spend with the release 0.7 version, I will create a custom LUT with DaVinci Resolve using my 5600K lights that I can share if people are interested which might be a decent starting point.
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 06, 2021, 11:47:56 AM
mklinger thanks for the input

It took me a while to fully understand the color correction, but after a lot of tweaking on Davinci Resolve, I got a usable sequence, but it is really really weird, counter intuitive and well it's hard to get it right. I still think quality wise 0.6.0 was a little better, the DNGs are coming out with a lot of color noise, and a nasty pink/magenta tint that I did not have before...

Anyway, I'm impressed with the speed improvement, but still need time to get the best out of this new DNG files, not happy with that for now...
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 06, 2021, 01:40:14 PM
mklinger thanks for the input

It took me a while to fully understand the color correction, but after a lot of tweaking on Davinci Resolve, I got a usable sequence, but it is really really weird, counter intuitive and well it's hard to get it right. I still think quality wise 0.6.0 was a little better, the DNGs are coming out with a lot of color noise, and a nasty pink/magenta tint that I did not have before...

Anyway, I'm impressed with the speed improvement, but still need time to get the best out of this new DNG files, not happy with that for now...

Hi muringuets, once you have the color correction figured out for a given light source, you should be able to create your own LUT (look-up-table), and then just apply that to any new footage shot in the same conditions.  That is how the process is designed to work with a color chart, shoot once with it, in sunlight, or your artificial lights, etc., use a VectorScope (in software) to dial in objectively perfect colors, or as close as possible, save the LUT, and then you can apply that to future footage with no extra effort or ever having to shoot the color chart again in the same lighting conditions.

Sorry for the long-winded response if you already understand this process.

Basically, shooting in Cinema DNG on the Chronos is now even more like shooting in Log or other various Raw formats on conventional video cameras.  Usually, the camera supplier will provide a basic LUT to start with, which is what is missing for us (for now).  For example, Canon provides a Log2->Rec709 LUT, Log3->Rec709, etc.  It is very challenging to start from scratch if you don't really know what you're doing.  For example, adjusting just white balance, tint, color temp, and global saturation is not going to work.  Those adjustments are meant to tweak the final color look, but wont get you from Log (or Cinema DNG in our case), to Rec709.

I would say it would be almost impossible to get objectively correct colors from Cinema DNG without a color chart. 

I like using the X-Rite ColorChecker Video.  It looks like it's been discontinued, but there is a newly name-branded version coming soon:

https://www.bhphotovideo.com/c/replacement_for/1191325-REG/x_rite_msccvpr_colorchecker_video.html


You mentioned that you use DaVinci Resolve.  The process of creating custom LUTs is super easy in that environment.  You can right-click on a clip in the color correction tab and there is a "Generate LUT" option right there where you can create a custom LUT from your existing correction.  The Gerald Undone video I linked in an earlier post shows this in more detail.

FWIW, I do a lot of video work with not just the Chronos, but things like a Canon XF-705, and various DSLRs.  I waited WAY too long before I got a proper color calibration chart and learned how to use it.  It makes all the difference in the world!


 
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 06, 2021, 01:53:54 PM
I still think quality wise 0.6.0 was a little better, the DNGs are coming out with a lot of color noise, and a nasty pink/magenta tint that I did not have before...

One quick thing, double check that you updated all the way to version 0.7.  The pink/magenta cast was a big problem with 0.6 but I found it was pretty much completely fixed in 0.7 except for very high gain situations at low resolutions. 

If you were at version 0.5, I'm not sure if the camera would auto-update all the way to 0.7, or if you need to update to 0.6 first.  Anyway, before you pull your hair out too much, re-check the software version on the camera to make sure it is indeed 0.7 especially if you came from 0.5.

I need to check the release 0.7 in case they changed something drastic from the alpha 0.7 I was testing, but as you can see from this video, the pink cast was a major problem with v6 and almost completely fixed with v7 in my experience:

https://youtu.be/a4dAjT9dE0k

Title: Re: Chronos V0.7.0 Full Release
Post by: Nikon1 on September 06, 2021, 02:00:16 PM
if anyone has a bunch of spare time, there is also a bunch of unstable 0.7.x Releases from before the Official 0.7.0 Stable Release:
 http://debian.krontech.ca/builds/
 Maybe one of them is different in terms of color. Whoever feels the need to or has the Time To do so, can also test them/ play around with them.
 Still havent looked at them, as i so far didnt even have time to propperly test the Stable Release, but downloaded and Archived them, as they probably will be gone sooner or later (as the 5.1 Unstable is long gone now), just in case they are usefull/ better for some resolution/ Setting i might need/ want at some point in the Future.
 So might be a good idea to download for anyone who wants to do some testing at some point, as long as they are still there.
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 06, 2021, 03:07:39 PM

...but as you can see from this video, the pink cast was a major problem with v6 and almost completely fixed with v7 in my experience:

https://youtu.be/a4dAjT9dE0k

Hello, mklinger san.
Wonderful! Now I know the power of version 0.7, I would definitely like to use it positively. Of course, with Cinema DNG.
And I'm looking forward to the development of LUT.

Thank you!
Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 06, 2021, 06:43:35 PM
I still think quality wise 0.6.0 was a little better, the DNGs are coming out with a lot of color noise, and a nasty pink/magenta tint that I did not have before...

One quick thing, double check that you updated all the way to version 0.7.  The pink/magenta cast was a big problem with 0.6 but I found it was pretty much completely fixed in 0.7 except for very high gain situations at low resolutions. 

If you were at version 0.5, I'm not sure if the camera would auto-update all the way to 0.7, or if you need to update to 0.6 first.  Anyway, before you pull your hair out too much, re-check the software version on the camera to make sure it is indeed 0.7 especially if you came from 0.5.

I need to check the release 0.7 in case they changed something drastic from the alpha 0.7 I was testing, but as you can see from this video, the pink cast was a major problem with v6 and almost completely fixed with v7 in my experience:

https://youtu.be/a4dAjT9dE0k



Hello mklinger. Thank you very much for your explanation and review on V0.7.0. I'll definitely work on the DNG a bit more, like grading log from scratch.
Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 06, 2021, 07:05:21 PM
if anyone has a bunch of spare time, there is also a bunch of unstable 0.7.x Releases from before the Official 0.7.0 Stable Release:
 http://debian.krontech.ca/builds/
 Maybe one of them is different in terms of color. Whoever feels the need to or has the Time To do so, can also test them/ play around with them.
 Still havent looked at them, as i so far didnt even have time to propperly test the Stable Release, but downloaded and Archived them, as they probably will be gone sooner or later (as the 5.1 Unstable is long gone now), just in case they are usefull/ better for some resolution/ Setting i might need/ want at some point in the Future.
 So might be a good idea to download for anyone who wants to do some testing at some point, as long as they are still there.


Hello Nikon1. Thank you for the links to the unstable releases. You’re absolutely right about testings, I think I just might test them all.
Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 06, 2021, 11:14:21 PM

Hi muringuets, once you have the color correction figured out for a given light source, you should be able to create your own LUT (look-up-table), and then just apply that to any new footage shot in the same conditions.  That is how the process is designed to work with a color chart, shoot once with it, in sunlight, or your artificial lights, etc., use a VectorScope (in software) to dial in objectively perfect colors, or as close as possible, save the LUT, and then you can apply that to future footage with no extra effort or ever having to shoot the color chart again in the same lighting conditions.

Sorry for the long-winded response if you already understand this process.

Basically, shooting in Cinema DNG on the Chronos is now even more like shooting in Log or other various Raw formats on conventional video cameras.  Usually, the camera supplier will provide a basic LUT to start with, which is what is missing for us (for now).  For example, Canon provides a Log2->Rec709 LUT, Log3->Rec709, etc.  It is very challenging to start from scratch if you don't really know what you're doing.  For example, adjusting just white balance, tint, color temp, and global saturation is not going to work.  Those adjustments are meant to tweak the final color look, but wont get you from Log (or Cinema DNG in our case), to Rec709.

I would say it would be almost impossible to get objectively correct colors from Cinema DNG without a color chart. 

I like using the X-Rite ColorChecker Video.  It looks like it's been discontinued, but there is a newly name-branded version coming soon:

https://www.bhphotovideo.com/c/replacement_for/1191325-REG/x_rite_msccvpr_colorchecker_video.html


You mentioned that you use DaVinci Resolve.  The process of creating custom LUTs is super easy in that environment.  You can right-click on a clip in the color correction tab and there is a "Generate LUT" option right there where you can create a custom LUT from your existing correction.  The Gerald Undone video I linked in an earlier post shows this in more detail.

FWIW, I do a lot of video work with not just the Chronos, but things like a Canon XF-705, and various DSLRs.  I waited WAY too long before I got a proper color calibration chart and learned how to use it.  It makes all the difference in the world!


 

Hello mklinger. I’ve followed your instructions and colour corrected 2 clips, the result is much better now than before! I was just doing quick tests, will dive in more deeply in the near future.
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 07, 2021, 04:32:02 AM


Hello mklinger. I’ve followed your instructions and colour corrected 2 clips, the result is much better now than before! I was just doing quick tests, will dive in more deeply in the near future.

Your color corrected clips are looking good, nice job!!
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 08, 2021, 07:04:05 AM
I still think quality wise 0.6.0 was a little better, the DNGs are coming out with a lot of color noise, and a nasty pink/magenta tint that I did not have before...

One quick thing, double check that you updated all the way to version 0.7.  The pink/magenta cast was a big problem with 0.6 but I found it was pretty much completely fixed in 0.7 except for very high gain situations at low resolutions. 

If you were at version 0.5, I'm not sure if the camera would auto-update all the way to 0.7, or if you need to update to 0.6 first.  Anyway, before you pull your hair out too much, re-check the software version on the camera to make sure it is indeed 0.7 especially if you came from 0.5.

I need to check the release 0.7 in case they changed something drastic from the alpha 0.7 I was testing, but as you can see from this video, the pink cast was a major problem with v6 and almost completely fixed with v7 in my experience:

https://youtu.be/a4dAjT9dE0k

Hi mklinger, I did update correctly from 0.6.0 to 0.7.0, checked and it is working properly...

I watched your video about 0.7 alpha testing, and the other one you suggested about color correcting log videos. I'm new to this video editing and professional tools and stuff, I'd say I'm just used to the previous method of color correcting and editing videos. I own the 1.4 camera for about 2 years now, and it took me a while to get good results out of it, I was happy (not in the saving speed department, but it's okay), it's just another step that I'll have to conquer on this long learning curve, but I'll get there...

I have just one comment about all this, you're using the 2.1 camera, and I see a lot of posts around here where you guys have problems with this version (purple/magenta tint, lower resolutions problems, banding, etc), but I'd like to see some tests made on the 1.4 version, just to make sure the software is developing in a way older cameras are getting improved too, because if they don't, I might as well stay on and older software version...

Anyway, I understand the importance of this version, and the improvements you're getting on your camera, but comparing my footages on 0.6.0 and 0.7.0 I can't really see a lot of improvements, it's the other way around... And I say this mainly analising footage from open areas, without aditional lights, just regular sun light (perhaps too little lights, but that's what I have to work with)...

Anyway, seems like a good time to upgrade my camera...
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 08, 2021, 07:13:05 AM
I still think quality wise 0.6.0 was a little better, the DNGs are coming out with a lot of color noise, and a nasty pink/magenta tint that I did not have before...

One quick thing, double check that you updated all the way to version 0.7.  The pink/magenta cast was a big problem with 0.6 but I found it was pretty much completely fixed in 0.7 except for very high gain situations at low resolutions. 

If you were at version 0.5, I'm not sure if the camera would auto-update all the way to 0.7, or if you need to update to 0.6 first.  Anyway, before you pull your hair out too much, re-check the software version on the camera to make sure it is indeed 0.7 especially if you came from 0.5.

I need to check the release 0.7 in case they changed something drastic from the alpha 0.7 I was testing, but as you can see from this video, the pink cast was a major problem with v6 and almost completely fixed with v7 in my experience:

https://youtu.be/a4dAjT9dE0k

Hi mklinger, I did update correctly from 0.6.0 to 0.7.0, checked and it is working properly...

I watched your video about 0.7 alpha testing, and the other one you suggested about color correcting log videos. I'm new to this video editing and professional tools and stuff, I'd say I'm just used to the previous method of color correcting and editing videos. I own the 1.4 camera for about 2 years now, and it took me a while to get good results out of it, I was happy (not in the saving speed department, but it's okay), it's just another step that I'll have to conquer on this long learning curve, but I'll get there...

I have just one comment about all this, you're using the 2.1 camera, and I see a lot of posts around here where you guys have problems with this version (purple/magenta tint, lower resolutions problems, banding, etc), but I'd like to see some tests made on the 1.4 version, just to make sure the software is developing in a way older cameras are getting improved too, because if they don't, I might as well stay on and older software version...

Anyway, I understand the importance of this version, and the improvements you're getting on your camera, but comparing my footages on 0.6.0 and 0.7.0 I can't really see a lot of improvements, it's the other way around... And I say this mainly analising footage from open areas, without aditional lights, just regular sun light (perhaps too little lights, but that's what I have to work with)...

Anyway, seems like a good time to upgrade my camera...

Ahh, I didn't realize you were using a Chronos 1.4.  It's my understanding that that camera has not had nearly the same image quality issues as the 2.1, at least not since its early days.  The 2.1 has been almost unusable under certain conditions until this release, so it's a big deal for that camera.

I have no idea how 0.7 works compared to 0.6 on a Chronos 1.4.  There probably isn't much image quality difference as it was already really good, from the examples I see (I don't own one).  Maybe the biggest reason for you to upgrade would be the saving speed increase, but if you are happy with the earlier version work flow, it might not be worth it.



Title: Re: Chronos V0.7.0 Full Release
Post by: Nikon1 on September 08, 2021, 07:50:20 AM
Didnt completely follow the last bit of conversation here, so sorry if i misread / misunderstand something, but from what i seen, the  1.4 had pretty decent Image Quality from rather Early on, and while it is still by far not a bad camera in any way, i would think that most people would mainly use the 1.4 for Higher framerates or general Highspeed Use. Anyone serious about High End Image Quality would want to use an 2.1, as even the 1080p FullHD Resolution the 2.1 Shoots is pretty much the Lowest Resolution that is still considered worth shooting for Entertainment/ Advertising/ ect. (4k is by now about Standard in mid to High end Consumer Cameras, 6K and 8K are coming... I personally still use mostly 1080p anyways, and Shoot 4K casually) today, with 720p HD being barely accepted as "high Quality" still. That in turn means that anyone using an 2.1 probably also is way more serious about getting High Quality Footage out of there. Given that there is also way less complaints about the 1.4 Image Quality to be heard, i guess the Focus of Development has become the 2.1 Image Quality. On the 1.4, as already has been said, you wouldnt really have much reason to upgrade anyways, if you just want to get Highspeed Footage of [whatever], and i assume most 1.4 Users wouldnt Upgrade camera Software regularly, but on the 2.1 there was also the Issue with the first batch of Sensors not being quite Perfect, so they behave Weird in some Situations and such. Causing Lines, Reduced Dynamic Range, Blacks Randomly cutting out completely in some Areas of the 2.1 Sensors and a lot of other things.
 .
 A good bit of all those Image Quality Improvements are still workarounds / fixes for those Problems that caused, not sure how the Current Batch of Sensors is Quality wise, but the first batch, of which i got one, was fairly bad. By now (from what i can tell so far from my rather limited amount of testing i did until now), with 6.0 and 7.0 Software, these Problems of the 2.1 Sensors have mostly been fixed, and you can get quite good footage from them in most Situations.
 .
 I dont own an 1.4 or have access to one, so i cant tell how these Improvements would affect one, but for the 2.1 these Fixes/ changes/ Improvements where Absolutely needed. Still not perfect, but way better than 5.1 and anything pre 5.1 (for most settings at least. Low Framerate stuff on the 2.1 is still best on Build 0.5.037.). With current versions, i can at least shoot Something without some Insane Lighting Setup and still needing to run heavy Denoising and other extreme Processing to get Presentable Footage.
 .
 Otherwise, anyone owning or using an 1.4 can and should still Post about any Issues here and i am sure they will be fixed sooner or later, but the 2.1 Sensor just seems to have an order of magnitude more Problems In terms of Image Quality, then the 1.4 Sensor ever had.
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 08, 2021, 08:18:16 AM
Nikon1, I think you got the point, but just to clarify, bear in mind that it is really hard to express myself clearly using technical language, but I'll do my best (english is not my country official language).

2.1 seems to have a lot of problems, so it's normal to focus on solving these problems, not complaining about the "attention it gets" in any sense...

1.4 are working fine for a while now, and it keeps receiving software updates, which is super awesome, and I'm not complaining too...

Point is, since the problems are mainly on 2.1, does the update bring anything better for 1.4?

Well, quick answer is yes, it should. And seems to be the case for the saving speeds.

But did anyone check for other aspects, like image quality? Did the software team checked the effects of these updates on 1.4?

I'll probably get an answer that says "sure it will improve quality and everything on 1.4 too, you're talking nonsense". That answer is okay for me, I'm not a professional videomaker and stuff, I'll accept it. I was just saying that comparing some footage I have on the 1.4 camera, it does not seem the case, and I may be wrong and it is ok too...

Title: Re: Chronos V0.7.0 Full Release
Post by: Nikon1 on September 08, 2021, 08:30:29 AM
No Problem at all, i myself am German and English is also not my native / first language. By now its not as bad as it used to be, but i even have problems expressing my thoughts in German Language at times, English is way worse, so i absolutely feel you in that one.
 .
 As far as the 1.4 / Software goes, i am like 200% sure they did test it to at least some extent on there, and if there where Major Issues / drawbacks from any Changes Made, i am also sure those would have been looked at (if noticed by whoever did whatever amount of testing on there..., Keep that in mind!) and solved in other ways.
 .
 If there are Issues with the 1.4 and 0.7.0, can you post examples/ give more Specific details about those?
 .
 I also noticed quite a bunch of Settings on 0.7.0, which will cause issues or worse Performance than Previous Releases, but dont want to post like 10 Single Posts about those, so i will put those Here, whenever i got time to do enough testing, that i can say [these Settings] cause [that] for sure, and can Provide Examples. Otherwise i think, i would just cause a ton of work for People at Krontech, which then would try to figure out however i managed to get so bad Footage in the First place. So i will try to provide documentation and also try to figure out a Pattern for when / what is going on (Gain/ Exposure Time Settings, will post later about that).
 .
 Would be interested myself also to see a Comparison on the 1.4, if you have any Footage on hand to share. Pretty sure That the Same goes for The Guys at Krontech.
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 08, 2021, 11:16:10 AM
No Problem at all, i myself am German and English is also not my native / first language. By now its not as bad as it used to be, but i even have problems expressing my thoughts in German Language at times, English is way worse, so i absolutely feel you in that one.
 .
 As far as the 1.4 / Software goes, i am like 200% sure they did test it to at least some extent on there, and if there where Major Issues / drawbacks from any Changes Made, i am also sure those would have been looked at (if noticed by whoever did whatever amount of testing on there..., Keep that in mind!) and solved in other ways.
 .
 If there are Issues with the 1.4 and 0.7.0, can you post examples/ give more Specific details about those?
 .
 I also noticed quite a bunch of Settings on 0.7.0, which will cause issues or worse Performance than Previous Releases, but dont want to post like 10 Single Posts about those, so i will put those Here, whenever i got time to do enough testing, that i can say [these Settings] cause [that] for sure, and can Provide Examples. Otherwise i think, i would just cause a ton of work for People at Krontech, which then would try to figure out however i managed to get so bad Footage in the First place. So i will try to provide documentation and also try to figure out a Pattern for when / what is going on (Gain/ Exposure Time Settings, will post later about that).
 .
 Would be interested myself also to see a Comparison on the 1.4, if you have and Footage on hand to share. Pretty sure That the Same goes for The Guys at Krontech.

I'd be surprised if Krontech sent out a FW without major tests on both platforms, so as I said earlier, the answer will pobably be "yeah we tested, it's fine"...

But you raised an interesting point, perhaps the problems I experienced are coming out from wrong parameters in the setup, I'll check...

I've tried only a few shots on 0.7.0 and I'd definitely need more tests to confirm my assumption on the quality loss I observed... For now I'll keep testing, if something pops up as a potencial culprit I'll let you know...
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 09, 2021, 02:52:54 AM
Hi, everyone.

I want to shoot with Cinema DNG with Chronos 2.1 Ver.0.7.0.
But I couldn't get the right color!
I searched for a solution for a while, finaly, I reached to the X-rite ColorChecker Passport 2.

https://www.youtube.com/watch?v=xL2BWQRJbv8&t
↑Sorry, this is japanese clip.

I hesitated to pay close to $ 200 for this color chart, but the results were very very good. I wanted this color! I was finally able to reach it.

https://www.youtube.com/watch?v=q-k7MYPWbIw&t
Thank you!
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 09, 2021, 04:27:47 AM
Hi, everyone.

I want to shoot with Cinema DNG with Chronos 2.1 Ver.0.7.0.
But I couldn't get the right color!
I searched for a solution for a while, finaly, I reached to the X-rite ColorChecker Passport 2.

https://www.youtube.com/watch?v=xL2BWQRJbv8&t
↑Sorry, this is japanese clip.

I hesitated to pay close to $ 200 for this color chart, but the results were very very good. I wanted this color! I was finally able to reach it.

https://www.youtube.com/watch?v=q-k7MYPWbIw&t
Thank you!

Hi Takashima, congratulations on your color results, they look fantastic! 

It was also difficult for me to initially justify the cost of a color chart, but it's really a necessary tool if you are serious about the final results.

I look forward to seeing more of your videos!
Title: Re: Chronos V0.7.0 Full Release
Post by: clkdiv on September 09, 2021, 04:37:50 AM
Very impressive! And very nice color!

Actually I don't understand how the color progress works. I wonder if a) the camera itself does have a LUT that is applied to the RAW internally or if b) the DNG really are absolutely unprocessed data and the LUT has to be applied in post?

If a): As the colors changed with the software version, there has to be some algorithm working in camera, right? If so: which? Is this the color Matrix?

If b): Does one have to develop sort of default setting for Adobe RAW or DaVinci then?

In any case, these settings would be shareable to all users of this camera, no?

Sorry for these beginners questions, I never digged into all that...
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 09, 2021, 04:57:38 AM
Hi, everyone.

I want to shoot with Cinema DNG with Chronos 2.1 Ver.0.7.0.
But I couldn't get the right color!
I searched for a solution for a while, finaly, I reached to the X-rite ColorChecker Passport 2.

https://www.youtube.com/watch?v=xL2BWQRJbv8&t
↑Sorry, this is japanese clip.

I hesitated to pay close to $ 200 for this color chart, but the results were very very good. I wanted this color! I was finally able to reach it.

https://www.youtube.com/watch?v=q-k7MYPWbIw&t
Thank you!

Hi Takashima, congratulations on your color results, they look fantastic! 

It was also difficult for me to initially justify the cost of a color chart, but it's really a necessary tool if you are serious about the final results.

I look forward to seeing more of your videos!


Hello, Mklinger-san. Thank you very much!
I would like to recommend it to everyone who has similar problems with color development.
It's expensive shopping, but it's worth it.
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 09, 2021, 04:58:58 AM
Very impressive! And very nice color!

Actually I don't understand how the color progress works. I wonder if a) the camera itself does have a LUT that is applied to the RAW internally or if b) the DNG really are absolutely unprocessed data and the LUT has to be applied in post?

If a): As the colors changed with the software version, there has to be some algorithm working in camera, right? If so: which? Is this the color Matrix?

If b): Does one have to develop sort of default setting for Adobe RAW or DaVinci then?

Sorry for these beginners questions, I never digged into all that...

Hi clkdiv,

I'm not 100% sure if DNG is completely unprocessed in the camera, but it certainly behaves similarly to Log and RAW formats from other video cameras which have very little or no processing.

The benefits of using DNG over H.264 are a higher color bit depth, meaning more color information is actually stored, which typically means more dynamic range is possible.  There are also no compression artifacts from the H.264 process itself, meaning you can wait until the very last step in your process to create a compressed video file for YouTube or whatever.  This is ideal if you do any post processing with the file.

Regarding your second question, yes, there really needs to be a default LUT that gets applied in post that goes from Cinema DNG to Rec709.  You need this LUT for every different lighting condition, but having a standard one for daylight would be very useful.  I suggested to the Kron folks that they publish a default LUT, and they are working towards that, but don't have one yet.  Having a proper color chart and some knowledge how to use it allows users to create these on their own and get really good results (like takashima's video above).

The general process is you shoot a video of just the color chart in your lighting conditions.  You color correct that video using a VectorScope (in software) based on the very objective "perfect" colors on the chart (which is why those charts cost $100+).  You then create a custom LUT that gets you the proper transformation in those conditions (this step is trivial in DaVinci Resolve).  Then, you can shoot anything else in those conditions and just apply that previous LUT and it'll get you there!

At this point, for 0.7 on a Chronos 2.1, if you don't have a color chart, I would probably stick to shooting H.264 for now - but even that needs some adjustment to get proper colors, but not nearly as much and you can get reasonable results with the basic adjustments like temp/tint/saturation.
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 09, 2021, 05:19:41 AM
Very impressive! And very nice color!

Actually I don't understand how the color progress works. I wonder if a) the camera itself does have a LUT that is applied to the RAW internally or if b) the DNG really are absolutely unprocessed data and the LUT has to be applied in post?

If a): As the colors changed with the software version, there has to be some algorithm working in camera, right? If so: which? Is this the color Matrix?

If b): Does one have to develop sort of default setting for Adobe RAW or DaVinci then?

In any case, these settings would be shareable to all users of this camera, no?

Sorry for these beginners questions, I never digged into all that...

Hello. clkdiv-san

I shoot with Chronos 2.1 by default with both color settings and color matrix. Color processing is only in Adobe Lightroom. After processing, I export to jpegs and make movie.

Maybe the DNG file should include the camera profile (like LUT) of Chronos Camera. Apparently, a typical camera RAW file has a camera profile. So, if you open a typical RAW file in Adobe Lightroom or Camera RAW, etc., the camera profile will be applied and the color will be displayed properly. I interpreted so.
Title: Re: Chronos V0.7.0 Full Release
Post by: clkdiv on September 09, 2021, 05:53:23 AM
Hello and thanks for your replies. I fully understand the advantages of RAW over H264, that's not my problem. I am just wondering where the "default" look of the RAW is created.

Now if I get it right, the in camera color Matrix is applied to H264 only, right?

In DaVinci you have that color matching tool. With this you can film the color cards you bought for 200$ and then make DaVinci match the footage the color card. As shown here (https://youtu.be/GWIRCMeSnDo?t=92), right?

Now would it be possible to film the color card with a standard 5.600k light and then match this footage min DaVindi to the color card, and boom, one would have a sharable algorithm that could be posted here? This would at least give a good starting point, no?
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 09, 2021, 06:12:12 AM
Hello and thanks for your replies. I fully understand the advantages of RAW over H264, that's not my problem. I am just wondering where the "default" look of the RAW is created.

Now if I get it right, the in camera color Matrix is applied to H264 only, right?

In DaVinci you have that color matching tool. With this you can film the color cards you bought for 200$ and then make DaVinci match the footage the color card. As shown here (https://youtu.be/GWIRCMeSnDo?t=92), right?

Now would it be possible to film the color card with a standard 5.600k light and then match this footage min DaVindi to the color card, and boom, one would have a sharable algorithm that could be posted here? This would at least give a good starting point, no?

Yes, exactly!  We are waiting for the Kron folks to create and share the "official" LUT.

I haven't had a chance to spend enough time with 0.7 yet to dial in a LUT with my 5600K lights, but I (or anyone) could certainly share DaVinci LUTs once created for a good starting point.  It's on my to-do list :)
Title: Re: Chronos V0.7.0 Full Release
Post by: Tiny on September 09, 2021, 07:53:03 AM
Hi, everyone.

I want to shoot with Cinema DNG with Chronos 2.1 Ver.0.7.0.
But I couldn't get the right color!
I searched for a solution for a while, finaly, I reached to the X-rite ColorChecker Passport 2.

https://www.youtube.com/watch?v=xL2BWQRJbv8&t
↑Sorry, this is japanese clip.

I hesitated to pay close to $ 200 for this color chart, but the results were very very good. I wanted this color! I was finally able to reach it.

https://www.youtube.com/watch?v=q-k7MYPWbIw&t
Thank you!

Hello Takashima san. Beautiful colors! Looking forward to seeing more of your videos.
Title: Re: Chronos V0.7.0 Full Release
Post by: takashima on September 09, 2021, 02:09:27 PM
Hi, everyone.

I want to shoot with Cinema DNG with Chronos 2.1 Ver.0.7.0.
But I couldn't get the right color!
I searched for a solution for a while, finaly, I reached to the X-rite ColorChecker Passport 2.

https://www.youtube.com/watch?v=xL2BWQRJbv8&t
↑Sorry, this is japanese clip.

I hesitated to pay close to $ 200 for this color chart, but the results were very very good. I wanted this color! I was finally able to reach it.

https://www.youtube.com/watch?v=q-k7MYPWbIw&t
Thank you!

Hello Takashima san. Beautiful colors! Looking forward to seeing more of your videos.

HI, Tiny san.

I haven't been interested in color charts until now. I am very grateful for you and everyone.
I will continue to shoot various slow motions.

Thank you!
Title: Re: Chronos V0.7.0 Full Release
Post by: CavOkay on September 09, 2021, 06:50:34 PM
Hello Dear Community and Dear DevOPs,

First I wanna say many thanks for this Gem, The Chronos 2.1, on my hand for about 2 month now.
I did not get the time to use it much yet, it came first with version 0.6, and of course I have noticed some functions that I think needs some improvements, more on this later.

3 days ago I did flash the new 0.7 version, (not with Etcher BTW ) and .... WOW !!!
I must say I am very impressed !
I see really huge improvements on image quality, de-noising, as you all have noticed, and I can confirm noise are (nearly) history on many resolution and gain combinations. so some of the camera resolutions that were barely usable I must say, on 0.6, are now very accessible.

Now I can increase sensivity / gain without the sacrifice of quality and so I can now feel the sensor being much sensitive to light, I can close the aperture and get more decent DOF and still get enough light.

Thanks a mil for that and I cant wait for the next improvements on the future version 


1st impressions with Chronos 2.1 : WISHLIST for improvements

I am tracking thunderstorms, looking for the perfect spiders or branched lightning strike in slow-mo.
but using the very bright glittering screen in the nightime, with the high brightness UI, and the high brightness top leds, (power, trigger, charge) is really an annoyance in such a use.

so my wish / suggestion is to have a setting, in future FW releases, to have a kind of Night Mode, easy on the night eyes
•   ability to disable the screen completely
•   or to choose some lower brightness settings,
•   and/or to disable individually the UI display temporarily (i.e. until a screen touch or a jog press )


same for the very bright and disturbing and blinding leds at the top of the Chronos :
either be able to disable them or at least  please have a software toggle/menu to make them -MUCH- more discreet, much less distracting


Other Improvement ideas :

- More custom Presets to be able to save (currently only one user custom white bal, and only one user custom matrix can be saved)
  ideally, they could be user-meaningful named presets

 - a tunable histogram, RGBL, on each channel, like in many consumer camera would be a great added value,
 - Tunable HSV cursors as well would be so simple and great, compared to the current Matrix which is rather obscure and a pain to fine tune

- screen saver : for subjects that don't have dynamic lighting intensity changes, once we have set up the aperture and checked the frame illumination is correct, we could have a way to lower the screen brightness, screen brightness adjustments, even for the UI, even enable the full screen off, to save power but keep the Chronos eiher on standby or fully ready but with screen off, yeah, because you already framed your subject.

 Not sure if you gain much on battery autonomy with this, but at least it can still be useful as a night-mode.

- make the UI disappear (user switchable, toggle UI on or off, i.e. with triple screen tap, or jog clic, or whatever)
- and maximize the frame size, enlarge the frame to full screen display

- UI only, brightness adjustments, or even allow transparency | to keep focus on the photo frame and less be distracted by the always-on UI
  I  guess Alway-on UI may burn the screen at that position with time
 
- if not already an existing function that I missed : allow playback of individual stored files directly from the Chronos, again more like in consumer cameras ( Read and play stored video files and not only the latest ) AFAIK, this is not possible as of version 0.7.

- Some more adjustment steps for Screen Digital Zoom with double tap screen, currently, only 2,5x is available, need more smoother steps and even higher magnifications, i.e. to achieve super precise subject focus.

- Need to be able to pan inside / across the Screen Zoom region to be able to spot an interesting subject not in frame center (currently, the screen zoom is only on the center region)

- from the Play / preview screen : Need to be able to select a frame region-crop for the final save file, thus, even less time to save the relevant region, and this enables a last optional re-framing of the subject before saving (i agree that this function can be left to the post processing software, but again if already implemented on the Chronos, it may boost the clip save speed on some situations, of course at the cost of time to set up this region)
- Video overlay : more user selectable info :
                     - True Source Original Capture Framerate 
                     - Date and Time
                     - Overlay position (enable portrait)
                     - any user free message (ideally formatted with variables, i.e. like "made by CavOkay YYYY/MM/DD HH:MM:SS ")

and last idea, I found the camera startup time is quite noticeable, and so, to be extra super ready to shoot dynamic subjects, (insects, birds and other life forms ) we have currently no other choice but to leave the Chronos running, at the cost of battery autonomy and maybe components life, like mainly the sensor, fan noise.

so I think this Gem needs a sleep mode, with a fast wake up. of course I dont know if it can be implemented, this will involve the ability to sleep the sensor and whatever consumes power, with a real quick wake up, just like any modern laptop.

This would enable a dramatic power saving at the field and I assume it may save on the sensor life too, save on the fan noise too. Fan noise is permanent and can disturb some living and moving creatures that you want to catch as natural as possible.

i.e. imagine this situation : I am near a flower, but currently there is no insect around, so I am waiting.

Case 1 : I let the Chronos up and running + the fan noise. since there is no insect, there is no need for now to pull the trigger and record, but power will be anyhow wasted until the subject enters the flower.
If I choose to save on the battery, then currently with the current Chronos software, I will have to PowerOff.
then if the subject appears, I will probably not be ready to shoot until camera is fully booted, so maybe too late for the interesting part.
 

Case 2 : with a sleep mode (the one I wish), simply put the Chronos to a sleep, kinda like a laptop sleep, until the subject appears, either with low fan or even none if possible, then wake up in seconds and enjoy the extra power saved while it was sleeping.

well these are so far my thoughts for an even better Chronos, a dream Chronos,
Hope that it helps, kindly let me know what do you think about these.


One more couple things (bugs ?) about version 0.7 :
  - the restore settings did not work for me, seems broken, has anyone experienced the same ? (was not a big pain though)
  - the digital shutter aperture angle is maxed out at 357 degrees, no matter how you try to top it at 360, it definitely tops at 357.
    I guess that internally, the real value is updated and that this is some kind of rounding issue, so not a big deal of a glitch.
           
Well, sorry for this long post, and again, Thank you for Version 0.7 ,
and BTW congrats to everyone here with your clips, they are awesome !!

Regards,
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 10, 2021, 04:47:10 AM


so I think this Gem needs a sleep mode, with a fast wake up. of course I dont know if it can be implemented, this will involve the ability to sleep the sensor and whatever consumes power, with a real quick wake up, just like any modern laptop.

This would enable a dramatic power saving at the field and I assume it may save on the sensor life too, save on the fan noise too. Fan noise is permanent and can disturb some living and moving creatures that you want to catch as natural as possible.


It's a very interesting idea... For now I'd recommend you to go for a portable power bank, I'm using a Jackery 300, so far really satisfied, I can power a 150W lamp and the camera at the same time, perfect solution for field use...
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 13, 2021, 12:25:44 PM
Tested the camera again this weekend, this time under artificial lights...

Got much metter results on the colour grading...

No more questions raised, I take back what I said before about quality issues on 0.7.0 1.4 camera.

I suspect that shooting with the correct color matrix is much more relevant for now, before I didn't give much attention, as I saw no real benefit, since I could adjust the white balance on post, and it would work nice. Now, I think I'll have to adjust for that when shooting, so I have a easier post production...

Thanks everyone, and Krontech, sorry for the multiple posting and weird questions asked...
Title: Re: Chronos V0.7.0 Full Release
Post by: rmohan26 on September 20, 2021, 06:54:38 PM
I had the camera for a few months and I love it.  I am using it mainly to shoot nature in sunlight.  I have had good success enjoying it very much.  I save as DNG and process in lightroom.  In upgrading from 0.6 to 0.7 -- I noticed the following

1. Save speed increased from around 10 fps to 15-17 fps at 1000 fps HD to SSD drive
2. The color shift in 0.7 is significant.  The color correction is harder than 0.6.  I feel 0.6 color was more manageable. 
3.  The banding in 0.7 is difficult to clean.  I need to shoot at x4 gain to get the necessary shutter speed outdoors. Out of box, the noise in 0.6 is similar to 0.7.  But once I perform noise reduction in LightRoom then 0.6 is smoother than 0.7

I have to test more. 

Feel free to check out my channel --
https://www.youtube.com/channel/UCypxxGen3ZrDdSla_Hentig

Most of the videos are on 0.6 version. 

Thank you
Rajesh

Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 21, 2021, 11:42:00 AM
Hi everyone, 

I recently took the time to try and refine my Chronos 2.1 DaVinci Resolve LUT by lighting my color chart with 2 Godox VL300 5600K lights and spending some time to really dial in the colors and white balance.

I am pretty happy with the results and thought I'd share my LUT with the wider community if anyone would like to try it out.  It should be a decent starting point for indoor controlled lighting at 5600K or daylight shooting.

You can download the LUT here:

https://klingerphotography.com/Chronos21/Chronos21_v7_Release_5600K_v3.cube_2.frame.cube

I think all you need to do is drop it in your DaVinci Resolve LUT folder.  On my machine that is here:

C:\ProgramData\Blackmagic Design\DaVinci Resolve\Support\LUT


What the images below show are the before and after of the color chart under controlled lighting, and then just a quick outdoor shot under direct sunlight with the only correction being applying the attached LUT.

Hopefully this helps some folks out who are struggling to get decent color with Cinema DNG files from the Chronos 2.1.

I'm using the paid "Studio" version of Resolve.  I'm pretty sure this will work with the free version and probably with other NLE programs like Premiere, Final Cut, etc., but I haven't tried any of those packages.

Thanks!

Marc
Title: Re: Chronos V0.7.0 Full Release
Post by: chrissie_c on September 22, 2021, 02:41:41 AM
Thanks very much for the LUT, that will save a lot of time :)
Title: Re: Chronos V0.7.0 Full Release
Post by: muringuets on September 22, 2021, 05:19:57 AM
Thanks mklinger

I'll shoot this weekend and I'll report back!!
Title: Re: Chronos V0.7.0 Full Release
Post by: mklinger on September 22, 2021, 05:42:37 AM
Thanks mklinger

I'll shoot this weekend and I'll report back!!

Hi muringuets, remember, this LUT was designed for the Chronos 2.1.  I think you mentioned you had a 1.4.  It may work well on those DNG files, but honestly, I doubt it...

Someone needs to do the same exercise with a 1.4 camera and 0.7 to provide a similar LUT.