fcnealvillangca :
I think no camera have the settings to increase the pixels uless the frame itself
All canon DSLR cameras have L, M, S sizes in Fine and Standard compression. It's certainly possible. To make sure it's not a settings issue, set both to shoot RAW (CR2) images in the largest size and compare that way.
photonboy, original 5D is actually 12MP, only MKII and MKIII are 22
He probably meant 5D MKII since he referenced that in another thread, but should be careful.