Nikon D800E blurry lens calibration

Started Nov 8, 2012 | Discussions thread
Leonard Shepherd
Leonard Shepherd Forum Pro • Posts: 13,099
Re: Think about it

If you need say + 15 correction based on looks sharp in the viewfinder or using AF confirmation light - you cannot normally take a sharp picture using LiveView manual focus because no fine tune is applied in LiveView.

It is still possible in this scenario for a lens to have a defective CPU - but if most of yours lenses indicate way off - revisit your test target.

Nikon clearly say fine tune is AF fine tune i.e. not applied to viewfinder manual focus.

If you can take a sharp picture using the viewfinder and manual focus it is highly likely the AF target is causing one of the potential problems identified on page 100 of the D800 instructions.

I disagree with always starting from the same direction eg infinity. With a few subjects, especially at an angle, infinity indicates back focus and minimum focus indicates front focus. Different indications infinity compared to minimum focus are 99.9% likely to be the AF target and not the lens or body.

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Leonard Shepherd
Many problems turn out to be a lack of intimate knowledge of complex modern camera equipment.

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