Chronos > Chronos User Discussion
Chronos 1.4 Footage Thread
Max:
--- Quote from: nik282000 on June 18, 2017, 07:57:57 AM ---I haven't seen any steady lines like those shown above but occasionally I have seen light/dark bands that will move vertically as the exposure time is adjusted. I'm not sure if they are associated with any particular resolution or frame rate but I'll see if I can reproduce it.
How about some electrical arcs crawling across and through wood:
http://i.imgur.com/zp64MPy.gifv
http://i.imgur.com/IfF5Kxe.gifv
--- End quote ---
The line is there for most shots over 15Kfps, It is most noticeable in low light situations. As long as you have plenty of light it shouldn't be an issue. We do hope to have the bug fixed in the next software release.
- Max
tesla500:
--- Quote from: PaulBryanTV on June 18, 2017, 10:18:30 AM ---
--- Quote from: nik282000 on June 18, 2017, 07:57:57 AM ---I haven't seen any steady lines like those shown above but occasionally I have seen light/dark bands that will move vertically as the exposure time is adjusted. I'm not sure if they are associated with any particular resolution or frame rate but I'll see if I can reproduce it.
How about some electrical arcs crawling across and through wood:
http://i.imgur.com/zp64MPy.gifv
http://i.imgur.com/IfF5Kxe.gifv
--- End quote ---
Nice gifs dude! I want to make one of those but scared I'll shock myself to death. Want someone who knows what they are doing to make me one lol.
Anyway here is a video of what's going on guys - https://www.youtube.com/watch?v=n7jFQWE8b28&feature=youtu.be
In the first part I just lower the aperture to make the lines more visible, there is one permanent dark line, one lighter line, and then the bugged shutter line.
After the text, I am simply moving the shutter to show the moving line bug.
Help? It sort of makes lower resolutions unusable currently.
--- End quote ---
I had one sensor that had a problem like this, but it was quite obvious, I sent that sensor back to Luxima for evaluation and am waiting to hear back. This camera may have a similar problem but not as bad. I'd like to swap your camera out for another one and investigate the issue, especially to figure out a way catch these problems in production.
oakwhiz:
Tug of war with a dog:
https://www.youtube.com/watch?v=JcC7hb-OS4M
PaulBryanTV:
--- Quote from: tesla500 on June 18, 2017, 03:09:22 PM ---I had one sensor that had a problem like this, but it was quite obvious, I sent that sensor back to Luxima for evaluation and am waiting to hear back. This camera may have a similar problem but not as bad. I'd like to swap your camera out for another one and investigate the issue, especially to figure out a way catch these problems in production.
--- End quote ---
Sure dude, message me on Facebook.
There are 2 permanent lines, mostly noticeable in lower light, one dark line and one lighter, both about a 3rd from bottom / top.
Also here is a more complete waterballoon video, 2 minutes of it, bless her!
https://www.youtube.com/watch?v=k61bIRNfkmo
JamesB:
Funny how both the dark "Spotting" non-linear pixels and the black lines both show up in under exposure. Could it be that it is the same problem that a 3 point calibration could solve?
I have seen the lines myself at high shutter speeds and could be some AD problem from the readout timing.
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