Update on D800 left focus issue ... not good ....

Started Jan 12, 2013 | Discussions thread
Peter Jonas Veteran Member • Posts: 3,273
Re: Wrong test again: use f/5.6

Pradipta Dutta wrote:

NikonManSoCal wrote:

Re-did the tests again - same setup (tripod, MUP, 6 sec delay, MC-36, 50mm 1.4, f1.4).

I took 3 images in PDAF - one center focused, one right focused, and one left focused using 51 point AF.

Use AF-S single point focus. When you use AF-C, surrounding AF points have an impact to AF. You don't want to do that. Use a simple AF-S single point AF.

At larger apertures, and especially at f/1.4 slight lens decentring issues might come into play. You must try to eliminate all sources of AF inconsistencies and inaccuaracies if you want valid and conclusive results.

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Peter Jonas

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