Recent Posts

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Chronos User Discussion / Re: Post Chronos 2.1 clips here!
« Last post by JamesB on June 26, 2020, 01:59:32 AM »
some chronos 2.1 fun to promote a fine dining restaurant that's now doing luxury home delivery.  Made primarily for Instagram. @atticamelbourne @lunecroissant @colinpagephoto

https://youtu.be/44Oe9YlGQxM

Excellent work and very clean, definitely some of the best out there with the 2.1!
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Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« Last post by PaulBryanTV on June 25, 2020, 04:45:28 PM »
@PaulBryanTV

I'm planning to buy a Chronos 1.4 black and white to video water sprays and similar.  I really enjoyed watching the video you posed at the beginning of this thread of water hitting a spoon and then spreading out.  What frame rate did you  use?

Thanks!
I believe it was at 1000fps.
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Software Dev / Re: Chronos V0.5.0 Full Release
« Last post by sanjay on June 25, 2020, 11:07:22 AM »
Thanks for the feedback! I'm glad that everyone is enjoying the update so far.

For the folks trying out audio + continuous record mode, I have a few things to add that may be helpful:

- You'd need an amplified source to connect to the camera's line-in audio jack for the best quality

- We might have a small hardware bug with the way mic and line-in are switched, so at low line-in volumes, you do hear a bit of feedback from the mic at the moment. I'd need to investigate a bit more.

- The audio codec chip inside both the 1.4 and 2.1 is a Texas Instruments TLV320AIC3101, which specifies that the line-in input shouldn't exceed 2.2 Vpp, single ended. From tests I've done here in the office, connecting the line-out of a PC or smartphone and having the volume at 25-40% of maximum seemed to work well. YMMV.
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Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« Last post by B.H.V on June 24, 2020, 07:24:20 PM »
Did something a little different. Chronos 1.4 clip shot at 3,587 FPS in 800 X 480 and upscaled to 3200 X 1920 (forgot to do a Black Cal). It definitely won't be as clean, but I just thought I'd play around with it, and this is the best I could do. Additionally, I interpolated the frames 4X using DAIN to simulate 14,348 FPS. I find DAIN to be better at handling motion interpolation artifacts compared to Twixtor. Lens used was a Computar 8mm 1.8.


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Chronos User Discussion / Re: Extracting still images
« Last post by Photopage on June 24, 2020, 02:30:26 AM »
Hi Photopage:

Sorry for the late reply.  Thanks for taking the time to try to verify the exposure.

In looking at the pictures, I am confused.  If each still is one microsecond exposure, why aren't the images much clearer.  In looking at the images, I have no idea what I'm looking at.

Thanks.

Hi rdemyan,
 I was using motion blur to work out the exposure duration.  No motion, no information.  So you are looking at a highly magnified image of a saw blade going at roughly 2000 rpm.  See attached jpeg for wide view.  Also, there was a good discussion about the differences in 2.1 and 1.4 sensors and how they deal with parasitic exposure.  You are right to choose the 1.4 for shorter shutter speeds.
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Chronos User Discussion / Re: Serial numbers.
« Last post by Podyny on June 23, 2020, 01:56:07 PM »
00053 :)
no... My personal serial numbers have been usually around the number 9 and 1 and I actually noticed that a lot of the times the most important hings in my life happened either on the 9th or the 11th or the 1st. I got curious so I decided what the numbers actually mean. I found this really dope article: https://www.sunsigns.org/angel-number-911-meaning/  that explained it to me and allowed me to understand it better. Hope if will be useful for you guys as well.
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Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« Last post by rdemyan on June 22, 2020, 04:31:27 PM »
@PaulBryanTV

I'm planning to buy a Chronos 1.4 black and white to video water sprays and similar.  I really enjoyed watching the video you posed at the beginning of this thread of water hitting a spoon and then spreading out.  What frame rate did you  use?

Thanks!
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Chronos User Discussion / Re: Extracting still images
« Last post by Nikon1 on June 22, 2020, 04:10:51 PM »

I could still try the to use extension tubes with my lens on the Kronos 1.4, couldn't I?
Sure, you can use anything you would be able to use on the Nikon Camera, except autofocus and such.
 I also searched a bunch more, and found some seemingly propper solution for the Iris Problem with Nikon lenses.
 Search up "reverse protect ring nikon" In an Search engine or "Nikon BR-6", those are propably the most propper way to do retromounting of lenses, that i found so far. The Reverse Protection ring will allow you to mount an Clear Filter in front of your lens assembly, so that the part thats usually inside of the Camera isnt exposed to the elements or your liquids. Just mount an Standard clear Protection filter there. The BR-6 does even more and seems to allow for full control of the Apperture via an lockable meachanical cable remote. not 100% sure, if the BR-6 also allows for Filters to be mounted, but i would hope so, since its original Part from Nikon? You would need to do your own research on that, if you are really interrested in this BR-6. Otherwise There Could be Diopters, which are kind of good out there, as mentioned my Russian ones, and i also never really tried higher priced new ones, but anything that avoids putting additional optics in front or behind your lens should generally give sharper and higher Quality images, given an High Quality Lens to beginn with. So Macro tubes and Retro-Mounting Lenses is usually the way to go, if a dedicated macro lens is for some reason not worth owning or to expensive.
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Chronos User Discussion / Re: Extracting still images
« Last post by rdemyan on June 22, 2020, 03:55:42 PM »
Thanks.  You are someone who has decades of hands-on experience, whereas I am a total novice.  I don't want to damage my lens by trying some of these things.

I could still try the to use extension tubes with my lens on the Kronos 1.4, couldn't I?
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Chronos User Discussion / Re: Extracting still images
« Last post by Nikon1 on June 22, 2020, 03:50:26 PM »
There Are Professionaly made Adapters for Canon, which will just connect the [now in Free Air] Contacts of the Lens with the Original contacts with the Body with a Cable, but since The G-Style Lenses without apperture Ring also Require Mechanics, i seem not to be able to find any of those for Nikon F G-Style.  However, there ist this (Also german again, sorry):
 http://www.fdm-ware.de/Retro/retro7.jpg
 http://www.fdm-ware.de/Retro/index.html
 .
 if that doesnt work, when in doubt, use this:
 http://forum.krontech.ca/index.php?topic=516.msg2836#msg2836
 .
 Or come op with something else yourself, its just a lever opening the iris.
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