AF fine tune settings vary with focal length on zoom lenses

Started Dec 4, 2012 | Discussions thread
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h2odavid
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AF fine tune settings vary with focal length on zoom lenses
Dec 4, 2012

Using FocusTune, I adjusted my Nikon lenses on my D800. I used a tripod, cable release, delayed shutter, and mirror lock up to negate any vibrations.

The settings vary depending on the zoom range.  Here are my results (* items had multiple trials and are the most fine tuned):

1. 24-120 f4
    @ 30 mm 0
    @ *85mm -3
    @112mm -5

2.  14-24 f2.8
    @*14mm -5
    @24mm -4
    @*20mm -5

3.  70-200 f2.8
    @75mm  -10
    @200mm -4
    @*122mm -16

4.  18-35 f, 3.5-4.5
    @18mm -5
    @23mm -5
    @*26mm -7
    @35mm -10

5.  10.5 mm f2.8 dx

@10.5mm, -6

6.  80-400 4.5-5.6
    @400mm, -5
    @*240mm, -6
    @80mm, -5

Nikon D800
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