It can be hard to tell if you're focusing on something at "hyperfocal" distance when the distance scale is crap and you're out it the woods without a tape measure. I have the same issue with my lens. If I focus on the ground in front of my feet and then stop it down to f/5.6 everything is in focus, but if I'm at f/2.8 trying to find hyperfocal can be finicky. I tried just last night and couldn't get it. Theoretically it should be just under 3 feet, and yet. . . . . .
Agreed. I have 2 FE lenses. Both are f/2.8 and a nightmare to focus wide open, on very close subject matter. I don't use my FEs like that very often, though. Luckily, the Sigma has AF for those few times I need it. BTW, I just picked up the Sigma 12-24 II. Killer lens if you like wide.