Same banding in ProRess 422 and 4444

[Matthew J]

So rendered some footage out of REDCine-X Pro Build 10 the other day that was desaturated and noticed what I would consider some really bad banding in the image. Normally, I used ProRes 422 as I found it's pretty good for my normal use. But after seeing the banding I tried rendering out some ProRes 4444 of the same clip. Same problem. So I took both clips and put them into FCP7 on a ProRes 4444 timeline. When I scrub back and forth between the 422 and 4444 clip I notice no difference in the clips-they both have the exact same banding. In RCX-P there is no banding, only in the ProRes. Have I just found a limit to the ProRes codec, or is there something wrong in the processing?

My RCX settings are full debayer going to 1080p with mitchell scaling.

 

[Alvise Tedesco]

Don't have an answer and experienced the same banding that wasn't on r3d (prores 422)

 

[Mark Toia]

Common trap for people that don't know there editing tools properly.

You will only see banding in un-rendered playback or in Med or low res playback. I'm doing it right now in front of me... 4444 PRO RES.. with banding... Rendered.. now nothing. gone.. !

Render your time line... it all goes away...

 

[Alvise Tedesco]

Thanks Mark.
True, I didn't rendered my timeline before exporting. But when I export a sequence render applies automatically, otherwise I couldn't have my Prores mov when quitting FCP.
After compressing in mpegstreamclip (h264 2 pass, 10000kbps) I still see banding on the sky @ 1'57'' here: https://vimeo.com/39412688
I'll render timeline next time
Cheers

 

[Matt Ryan]

Thanks Mark.
True, I didn't rendered my timeline before exporting. But when I export a sequence render applies automatically, otherwise I couldn't have my Prores mov when quitting FCP.
After compressing in mpegstreamclip (h264 2 pass, 10000kbps) I still see banding on the sky @ 1'57'' here: https://vimeo.com/39412688
I'll render timeline next time
Cheers

It's also most likely your monitor. It's probably 8 bit which will show banding in gradients due to the fact it cant display them properly and the compression of the video itself.