Thursday, 27 December 2012

Nikon D800

Nikon D800

There have been some discussions online about an autofocus problem with the new Nikon D800 and D800E bodies, and there’s been a fair amount of misinformation about this problem published as well. It’s not at all clear how many D800/D800Es have this problem, but I’ve confirmed that my D800E does. This post is to document the problem and to help others determine for themselves if their bodies suffer from this as well. Here’s the problem: If you autofocus using the far-left autofocus point (and ONLY the far-left autofocus point) your image will be slightly out-of-focus. My tests are below. First, here is the focus test pattern, shown as a scaled JPEG from the full-frame image. The patterns are placed carefully to align with the leftmost, center and rightmost autofocus points. This particular set of tests was done using Nikon’s 24-70mm f/2.8 zoom set at 48mm and f/2.8. I repeated the tests with a 24mm f/2.8 prime with virtually identical results, but not shown here.

Nikon D800

Nikon D800

Nikon D800

Nikon D800

Nikon D800

Nikon D800

Nikon D800

Nikon D800

Nikon D800

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