10-23-2011, 07:41 PM
(This post was last modified: 10-23-2011, 07:46 PM by Brightcolours.)
No. phase difference detection is "normal" for DSLRs. Contrast detection is "normal" for compact digitals and live view with contrast detection.
The lens indeed does not seem to focus very accurately, although to me it sounds as if you are using a weird AF mode? Not sure, as I am not at home with the different Nikon nomenclature (the "servo" part makes me think of AF for shooting something that moves?).
The edges look rather crappy, but that may well be normal with this lens. You are right in thinking that adjusting AF with a micro adjust feature may be ok for one focal length but not another, that depends on the lens. It should more or less function fine without, and it seems as if it does not.
The lens indeed does not seem to focus very accurately, although to me it sounds as if you are using a weird AF mode? Not sure, as I am not at home with the different Nikon nomenclature (the "servo" part makes me think of AF for shooting something that moves?).
The edges look rather crappy, but that may well be normal with this lens. You are right in thinking that adjusting AF with a micro adjust feature may be ok for one focal length but not another, that depends on the lens. It should more or less function fine without, and it seems as if it does not.