So, I've been playing around with the Sigma 30mm f1.4 that I got a few weeks ago, and I decided today to the notorious "battery test" I shot in 1 stop increments from 1.4 to 4. Center focus in live view 10x used tripod, well lit room, shutter cable, etc etc, blah blah blah...
Here's the results at shooting 2 feet away first. 100% crop:
I shot at about five away too. But I'll wait before or if I should even post those. I focused from infinity each time and it didn't always get it right, but there was a slighting distracting background and at a narrow DoF I figured was the cause. It looks like the right battery is slightly sharper than the center? (at least at the wide apertures) Any thoughts? Suggestions?