John Elder
Well-known
You should retest using a tripod. Eliminate human error as possible cause. Test more than 1 lens. If only one lens displays the problem, have the lens calibrated. I assume you are shooting wide open.
David Hegar
Established
I will do that, John.
-David
-David
You should retest using a tripod. Eliminate human error as possible cause. Test more than 1 lens. If only one lens displays the problem, have the lens calibrated. I assume you are shooting wide open.