DotTune: Video Tutorial for AF tuning without photographs

Started Feb 18, 2013 | Discussions thread
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Leonard Shepherd
Leonard Shepherd Forum Pro • Posts: 10,596
Re: With regret - why do so many ignore Nikon's guidance?

With regret - why do so many ignore Nikon's guidance?

The suggested target is a symmetrical target .

Nikon say auto focus does not perform well with symmetrical targets, and also 5 other groups of target. My 14 experience using Nikon is, in general, the Nikon guidance is good.

The video starts by suggesting initial focus using Live View. Nikon explain in instruction books some subjects can confuse Live View and be OK with phase detect, and vice versa.

It would make much more sense to start with a target likely to be 100% reliable with phase detect and also good with Live View.

Then include instructions on focus distance for each focal length being tested to make sure the AF target remains a suitable size for likely 100% reliable phase detect AF.

Most complaining and posting links probably would not post if they looked at Nikon guidance first as almost all post examples using links where AF may not work well.

Llinks following Nikon's guidance seems close to nil, strongly indication in most cases the problem is not in front of the camera eyepiece.

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Leonard Shepherd
Great images are often of good subjects.
If they are great images does what lens, body or technique was used matter more than the skill of the photographer?

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