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| p.1 #3 · D800 question please help |
The D800 left bank AF defect is evident on wide fast lenses, wide open. I could see it on my 24-70 between 24 and 35mm, f2.8. AT 24mm it would be gone by f5.6, f4 at 35mm.
It will be consistent, as workerdrone says.
Testing these lenses wide open and on the sides can also be playing in areas these lenses are not as strong as far as sharpness. So it's important to have some idea how these lenses perform wide open, and what normal or acceptable looks like. Left and right should be consistent with reasonable expectations, and with each other. Center will most likely be better, and that is usually normal for these lenses wide open.
With the left defect, the left will lock but be out of focus to a point unreasonable for this lens, and the right will be in focus, again to a reasonable level.
Always consider the lens: your lens may need service, not the body. Also consider your expectations for the lens: are they reasonable?