there’s a xavc premiere banding bug where you have to re-export back to MXF op1a again and import again.
https://forums.adobe.com/thread/2164402
also, using premiere’s maximum bit depth will enable 32bpc composites. this won’t
help much if the raw footage has banding, but it will composite better and help in extreme grading
max render quality for resize scaling.
there’s banding like sky, then there’s moire from small repeating patterns. you can blur those.
to stop banding,export 10 bit in camera or external prores recorder. Also, any lut that is
16,32 bit will create banding as will effects with 8bpc premiere tag. finally, the export 8 bit h.264 will create banding.you can use neatvideo to remove some banding.
if uploading to youtube/vimeo 8 bit:
a good trick is to export a high quality intermediate in 8 bit. then import/fix with neatvideo. then export final h.264. neat, huh?
if the bluray media looks good if you import back into premiere, then the player doesn’t see 0-255 sRGB. The TV may need calibration. premiere and VLC(with opengl enabled) both see exactly the same gamma and RGB values.