>>3959067Fullframe is a meme unless you have proper lenses for it (what was acceptable on crop may now be vignetting to shit on ff, same with sharpness).
The center AF point is fucking impressive, the others may fail from time to time in low light, unless there's clear contrast on the direction it's made to detect.
The Q-button functionality you have on your 600D is very primitive on the 5D2, and outright hidden by default.
Auto ISO on full manual mode means ISO 400 at all times, unless you're shooting video, in which case it somehow works as it should.
The sensor is pretty clean, but the shitty ADC gives some horizontal banding noise at ISO 100-400 when lifting shadows like a retard.
Personally, I think €450 is a bit too much for a 14yo camera and a plastic 50. I've got 2 5Dmk2s and a 60D all with ~100k shots for €370 2 years ago.
t. daily user of 5Dmk2, picrel is an average shot in studio settings