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D300 AF accuracy & exactness question

JosephK

Seattle, WA, US
7064 posts

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"RE: D300 AF accuracy & exactness question"

JosephK Silver Member Fellow Ribbon awarded for his excellent and frequent contributions and sharing his in-depth knowledge and experience with the community in the Nikonians spirit. Nikonian since 17th Apr 2006
Tue 05-Mar-13 07:58 PM | edited Tue 05-Mar-13 07:59 PM by JosephK

At a quick glance, your results look like what I would expect. You are shooting at f/1.8 at what appears to be a really close distance; this will lead to a really thin DOF and will also show the focus plane curvature (sharp in the center, less sharp at the edges).

As to the slight variance in the actual focus from frame to frame, even at f/1.8 there is a range of "in focus". Also, the choice of text as your focus target might come into play. The white-green border might be a better target.

Hopefully, some others will add some comments.

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Joseph K
Seattle, WA, USA

D700, D200, D70S, 24-70mm f/2.8, VR 70-200mm f/2.8 II,
50mm f/1.4 D, 70-300mm f/4.5-5.6 VR, 18-70mm f/3.5-4.5 DX

A general, generic topic D300 AF accuracy & exactness question [View all] , cacauet2 , Mon 04-Mar-13 08:36 PM
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