Very useful re the rule of 500! TY. What ISO and aperture do you use? I tried using a 28mm @ F2.8 (on a zoom 2.8), it did not autofocus either, and I never found a good spot near the infinity marker that worked as well as the 50mm 1.4G. Advice?
ANOTHER question: Which is better - mirror up with remote - or time delay 5 seconds?