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D800 and AF performance

ericbowles

Atlanta, US
10533 posts

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"RE: D800 and AF performance"

ericbowles Moderator Awarded for his in-depth knowledge and high level skills in various areas, especially Landscape and Wildlife Photoghraphy Writer Ribbon awarded for for his article contributions to the community Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 Nikonian since 25th Nov 2005
Sun 09-Jun-13 01:54 AM

I think the distinction is whether they operate as cross sensors. With 11 point, it's easy to end up with an AF sensor that is not a cross sensor. While that's okay for f/5.6 and lower, at greater than f/5.6 it can make a difference in AF performance and cause you to miss focus.

This is even more of an issue with an f/4 lens and teleconverters. If you use a 1.7 or 2.0 teleconverter, its easy to end up with an AF sensor that does not perform as well as the center sensor. The same issue applies to a variable aperture zoom. In both cases you need to be aware of the impact on AF from the narrower aperture - not just whether AF occurs but the accuracy of AF as well.

Eric Bowles
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This is a hot, active topic! D800 and AF performance [View all] , ericbowles Moderator Awarded for his in-depth knowledge and high level skills in various areas, especially Landscape and Wildlife Photoghraphy Writer Ribbon awarded for for his article contributions to the community Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 , Sat 08-Jun-13 12:40 PM
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