Grids on Timeline and Render Clips

Posted:
Wed Apr 21, 2021 10:27 pm
by Jay Strojnowski
Cross-hatching or grids are showing up on my clips. They appear only on fully desaturated color files. Has anyone seen this before?
Possible Fixed Pattern Sensor Noise

Posted:
Thu Apr 22, 2021 4:05 pm
by Jay Strojnowski
There are distinct vertical and horizontal lines present. I sent it to Joey D'Anna and he believes it may be Fixed Pattern Sensor Noise.
Re: Grids on Timeline and Render Clips

Posted:
Thu Apr 22, 2021 6:36 pm
by dnozadze
Hi Jay,
that looks like noise to me. And notice that the crosses only appear in the areas, where there are white clouds (or at least they are more visible). I'm assuming that's the compression doing it's "magic". Which camera did you record it on? What was the ISO? Which lens? To me it looks like unclean footage. I mean, filming a dark sky and hoping to get a clear shot with just moonlight, unless shooting with an A7SII on 40k+ ISO, is damn near impossible.
Does the footage look like that without editing or after the edit?
Cheers,
Dawid
Re: Grids on Timeline and Render Clips

Posted:
Fri Apr 23, 2021 4:09 pm
by Jim Simon
dnozadze wrote:that looks like noise to me.
Low light noise, to me. I don't see any specific pattern to it.