From what I see color checker square is showing much smaller magnification then 100%
so it is very far from exact .
( See attached screenshot )
Actually I think focus check is OK with C1 ,
Selective process is IMO a bit difficult for example you cannot
undo misstakes like - select several images , forget about your selection and give a
All selected images are tagged .
In Bridge that situation means you undo your misstake.
In C1 you canot undo that ( and most other things )
I shoot a lot with Mark 2 also , and would never try to view those in my C1 Pro
the problem with c1 focus check is that it doesnt keep up with the shooting. it never never gets a chance to un-pixelate. but that little color square keeps up, even though not as detailed as focus check, one of the only ways i know how to check focus while shooting.