Is there any way to only process the luma channel on a T2i, before or when writing to the card? I mean just the 4 in 4:2:2. So, 1080p 24fps, black and white with no or little compression.
4:2:2 (and any other) subsampling is a picture-definition after demosaicing, thus it cant be done. or better: we dont know much/enough about the hardware-encoder inside the body.. honestly saying, most of compression-efficiency is realised by simplifying the chroma-channels :)
no, i highly doubt..
Thanks.