Similar to Arash's thread regarding a comparison of both cameras, it would be great if someone could take the time to compare the two cameras in a focal-length-limited scenario, meaning that images are taken with both cameras from a set distance. Then crop them so the subject is framed identically. (The Mark IV would require a heavier crop due to the 1.3x sensor.)
I did a similar comparison between the 7D and Mark III:
http://iwishicouldfly.com/iwishicoul...Mark%20III.pdf
Thanks to anyone who might be able to give this a try.
Alan