fine tuning af

Started May 4, 2012 | Discussions thread
Leonard Shepherd
Veteran MemberPosts: 7,927Gear list
Re: fine tuning af
In reply to larrywilson, May 5, 2012

It is interesting there is no comment on the test procedure.
A need for 17 looks obviously unsharp in the viewfinder at nil.
Does the viewfinder look obviously sharper at 17 - no comment is made.
Nikon say finetune is not normally required.

Nikon also say some types of subject sometimes cause mis focus in the instructions for every camera body they sell, just about all the DX lenses and the 14-24.
Nikon repeat their standard guidance on getting good results at

Based on looking at over 760 posted images claiming this type of problem and seeing only 2 using good testing technique the mathematical likely cause of the OP's suggestion 17 is needed for his her equipment is it is not being tested sensibly

It might be, with proper testing, the camera or lens has a serious enough fault to make the viewfinder look unsharp at nil. If this is so and the equipment is new get it exchanged - if it is old get it repaired.
No Nikon equipment normally needs 17 .

Being blunt anything needing 17 is either seriously defective and needs an exchange/repair - or (probably around 99% of complaints) is not being tested with a reliable AF subject for calibration.
Leonard Shepherd

99% of photo equipment is good or very good. The main thing to do with it is to learn to use it well.

 Leonard Shepherd's gear list:Leonard Shepherd's gear list
Nikon D800 Nikon D7100 Nikon AF-S DX Nikkor 18-200mm f/3.5-5.6G IF-ED VR Nikon AF-S DX Nikkor 12-24mm f/4G ED-IF Nikon AF-S Nikkor 16-35mm f/4G ED VR +18 more
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