Recent Posts

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91
Chronos User Discussion / Re: Insanely high speed slit scan method?
« Last post by abellay on February 18, 2021, 12:54:10 PM »
Is there any information about the results of the research? This topic is old, but the information is still relevant to me.
92
Chronos User Discussion / Re: Sales Thread
« Last post by BlackthorneMedia on February 17, 2021, 11:53:55 AM »
Just list it here, that’s how I was able to purchase mine. You can try eBay but they take a hefty cut and the scammers are really bad on tech items.

Not a bad idea LOL...
93
Software Dev / Re: Chronos V0.6.0 Full Release
« Last post by Nikon1 on February 16, 2021, 12:39:59 PM »
Thanks for the feedback so far, everyone. Below are a few replies to various items:
 [...]


Been using it for a bit now, and i really miss the "Play" Button in the Playback Screen? Is there a specific reason, why it had been removed in this Version? The Play button was very nice Way to view/review footage or to just have a loop playing. Still works with the Forward / Backwards buttons, but is kind of annyoing to allways need to hold the Button down and so on. Would love to see this Play Button come back in future Revisions if possible.  The File Browser /List Files option is Great though, finaly a way to check the Footage Without needing to have a PC right there.


This wasn't removed, but your default preferences were reset, which is why it was hidden again. It can be re-enabled by going into Util->Main, then checking the One-touch Playback option box.


Horizontal Banding: In cases where this occurs, it may help to black-cal a few times, especially after changing the shutter position. Will take a look, and have seen those sample DNGs, thanks Nikon.

Issues with 800x600: I've noticed this recently too, seems like changing the offset away from center moves the position of the vertical stripe. Also looking into it.

Lowered Dynamic Range: This is likely a side-effect of the sensor driver configuration. Some tweaks were made to the analog gain voltages to handle the vertical banding. Overall, we've been trying to work within the limitations of the sensor, and the tradeoff between the banding mitigation and light sensitivity hasn't been trivial. I'll keep an eye out for more info on this thread, as it is helpful in determining which areas still need improvement.

 Thanks a lot, really glad, that Play button is still there  :D .
 .
 About the Banding, just wanting to say, i have seen Some Situations, where it gets WAY worse than the DNGs i posted above, and i dont think Black Calibration helps with that, but will test to do that. I ordered myself a bunch of 32GB Micro SD-Cards to keep the 0.6.0 and an older Version as well as The unstable Build on them without needing to Reflash them all the Time when Changing Versions, so i can directly compare the thing about the Banding there. Hope i get around to test it soon.
94
Software Dev / Re: Chronos V0.6.0 Full Release
« Last post by sanjay on February 16, 2021, 10:44:58 AM »
Thanks for the feedback so far, everyone. Below are a few replies to various items:

Thanks for this update!!

One question to calibrate the camera - is it necessary to use a lense cap in step 1 too?

It isn't necessary to cover the lens in Step 1, as the sensor is running in a bypass/test mode, so it doesn't do anything with the light coming in.


Been using it for a bit now, and i really miss the "Play" Button in the Playback Screen? Is there a specific reason, why it had been removed in this Version? The Play button was very nice Way to view/review footage or to just have a loop playing. Still works with the Forward / Backwards buttons, but is kind of annyoing to allways need to hold the Button down and so on. Would love to see this Play Button come back in future Revisions if possible.  The File Browser /List Files option is Great though, finaly a way to check the Footage Without needing to have a PC right there.


This wasn't removed, but your default preferences were reset, which is why it was hidden again. It can be re-enabled by going into Util->Main, then checking the One-touch Playback option box.


Horizontal Banding: In cases where this occurs, it may help to black-cal a few times, especially after changing the shutter position. Will take a look, and have seen those sample DNGs, thanks Nikon.

Issues with 800x600: I've noticed this recently too, seems like changing the offset away from center moves the position of the vertical stripe. Also looking into it.

Lowered Dynamic Range: This is likely a side-effect of the sensor driver configuration. Some tweaks were made to the analog gain voltages to handle the vertical banding. Overall, we've been trying to work within the limitations of the sensor, and the tradeoff between the banding mitigation and light sensitivity hasn't been trivial. I'll keep an eye out for more info on this thread, as it is helpful in determining which areas still need improvement.
95
Chronos User Discussion / Re: Post Chronos 2.1 clips here!
« Last post by B.H.V on February 16, 2021, 06:40:23 AM »
Some fun in the snow.



linke to full video

https://vimeo.com/512134181

Awesome snowball footage!
96
Chronos User Discussion / Re: Chronos 1.4 Footage Thread
« Last post by Buddlich on February 15, 2021, 06:05:33 AM »
Last video with the old software :)
https://youtu.be/fzczkPnsEVk

I tried to build my own match rockets. I mean - the Slow Mo Guys could do it, so it should be no problem building them myself... will.. it turned out, that like 90% of them failed spectacular :D
But it still made some incredibly cool slowmotion fottage! :)
97
Chronos User Discussion / Re: High Speed Motion Control Slider
« Last post by NateP on February 14, 2021, 03:11:26 PM »
Wow! That's a nice slider!
98
Chronos User Discussion / Re: Video file straight from the camera.
« Last post by NateP on February 14, 2021, 03:03:46 PM »
I posted some Raw, untouched DNG-Footage here:
 https://forum.krontech.ca/index.php?topic=637.msg4233#msg4233
 Managed to Squeeze 154MB worth of files into a Single Post, which makes for about 1,5 Seconds Playback time at 25fps.
 So if you still want to play around with more Untouched Footage, you could use that bit of Footage there.

Sure do, thanks!
99
Chronos User Discussion / Re: Video file straight from the camera.
« Last post by Nikon1 on February 14, 2021, 09:21:55 AM »
I posted some Raw, untouched DNG-Footage here:
 https://forum.krontech.ca/index.php?topic=637.msg4233#msg4233
 Managed to Squeeze 154MB worth of files into a Single Post, which makes for about 1,5 Seconds Playback time at 25fps.
 So if you still want to play around with more Untouched Footage, you could use that bit of Footage there.
100
Software Dev / Re: Chronos V0.6.0 Full Release
« Last post by Nikon1 on February 14, 2021, 09:18:07 AM »
Here is an untouched DNG Sequence (Heavily Compressed With 7Zip) directly from the 2.1, that shows this Banding i talked about above in Motion. Watch for the Reflection on the Hammer and how it affects the Background. Shot at 0db 1kfps, 180° on an Schneider-Kreuznach Tele-Xenar 75mm/2.8 (was a bit stopped down, not exactly sure where i put the Apperture at...). This Short bit of Footage also shows Ghosting, where the Hammer Moves Fast, there is a "Ghost" Exposure of the Overexposed Highlight Visible, which disappears, when it suddenly stops. The Ghosting was allready there in the Previous Version, and wasnt really a Problem Ever for me, but still wanted to point it out, as i now finaly have footage which shows it very well; but the "Horizontal Banding" isnt that nice, and i dont remember it beeing that visible bevore.
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