I would worry about the sharpness AFTER you're sure it's focusing properly. Put the aperture at 1.4 and take a photo of a newspaper or book at an angle. Get as close as you can, and focus on a single line of text (center focus point).
Now, at full size, is that line of text in the sharpest focus? or did the focus miss? If the line of text above or below is sharper than the line you were pointing at, then you have a focus problem.
I would worry about the sharpness AFTER you're sure it's focusing properly. Put the aperture at 1.4 and take a photo of a newspaper or book at an angle. Get as close as you can, and focus on a single line of text (center focus point).
Now, at full size, is that line of text in the sharpest focus? or did the focus miss? If the line of text above or below is sharper than the line you were pointing at, then you have a focus problem.
