01-25-2014, 11:47 PM
The focus scale on mine was way out, and I have corrected it. To me, the reduced quality at f/3.5 isn't misfocus, as you can play about with magnified live view as much as you like. Feels like a cheap fast prime wide open in that case. Probably has a wide point spread function.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.