I have imported QT animation codec files into Premiere and then re-exported them in variety of lossless formats and it seems like Premiere always introduces an ugly banding on gradients.
The original files are vector art with loads of gradients that are outputted from AE and look fine (they do exhibit some slight banding but nothing serious):
I export them from Premiere at maximum bit depth, without using the preview files and in a variety of codecs but they all introduce more banding (mostly evident in the dark grays which introduce a visibile fringing):
The thing is that the fringing is introduced when the source files are ingested. When I open them in the source monitor they already have this banding.
It's very dependent on the codec chosen for your sequence preview files and your choice of codec for export. QT animation at 100% quality creates 4:4:4 chroma-subsampled files. Many export codecs cannot duplicate that. Read here:
So it's about what Premiere is using for a preview codec? Even though I am telling it not to use preview files for the final render?
Today I tried QT PNG exports out of AE and they look perfect. I simply imported them into PP and spat them out to QT PNG and they have the same banding. As I'm working on a PC I have no option of using QT previews, so I can only use I-frame only MPEG as a preview file format.
Should I try using the UT YUV422 codec instead?
Still not sure why PP is using the preview renders when I clearly specified it not do that...
The banding is more likely related to bit depth, which is what determines the number of possible color gradations in a video file.
Did you find a solution to your banding problem ?
I ask because I'm experiencing a similar problem with gradients.
My .avi footage exported from a 16 bit After Effects CS6 composition looks fine, but when I export the video from Premiere Pro CS6, in H.264 there's terrible colour banding, whether I check Maximum Bit Depth or not.
You can get to 10 bit with H.264 compression by choosing an MXF OP1a export and the AVC-I 100 codec. It's a very good Master format, but has limited use outside of that. (You can't put it on DVD or Blu-ray, you can't add it to a web page, very few players will handle the format for computer viewing.)
I have the same Problems. I am cutting with H264 files from a Canon 5D Mark III. When I render the sequence the preview files have banding problems. When I export the sequence, I also have banding problems. I tried different setting and codecs for rendering and export. Also ProRes 422HQ, 4444 does not work.
When I export a H264 to ProRes422HQ directly in quicktime I get perfect results without banding.
Quicktime is not the best programm for every format. For flash I prefer Adobe Media Encoder. But when you make quicktimes like H264 or ProRes you get much more better results with Quicktime Pro than exporting the files with Media Encoder. I don´t know why but thats my experience.
The main issue ist getting a good result out of Premiere to encode it in any other format. When the export from premiere ist not satisfying (like ist is in my case) you won´t get a better result with quicktime pro.