12-24-2015, 01:09 PM
dave, that's always happening to me as well. No matter how I test, with which software (FoCal or LensAlign), after hours of testing and adjusting I still have issues. Be it because I usually shoot on AF-C, be it because I adjusted a lens at 50× FL and the distance is just anything else (which can need a different AFMA), there is uncertainty all the way. If any DSLR user tells me, HIS pictures are nearly always spot on focused, I bet, either he's using slow lenses or stopping down.
Fast tele-lenses have a shallow DoF, hard to hit precisely. And difficult to notice while shooting. Fast wide-angles are even worse because the AF points get fat compared to the details - you never know what the AF is aiming at. Also difficult to notice while shooting. The more I look into it, the more I come to the same conclusions like thxbb12 and Roger Cicala: Occasionally a picture will be focused precisely when using PDAF. The rest ist spray and pray.
Fast tele-lenses have a shallow DoF, hard to hit precisely. And difficult to notice while shooting. Fast wide-angles are even worse because the AF points get fat compared to the details - you never know what the AF is aiming at. Also difficult to notice while shooting. The more I look into it, the more I come to the same conclusions like thxbb12 and Roger Cicala: Occasionally a picture will be focused precisely when using PDAF. The rest ist spray and pray.