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Nikon DSLR Cameras
General Digital SLR Cameras
how to find a "reference" lens for AF fine tuning?
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<blockquote data-quote="dieselnutjob" data-source="post: 845624" data-attributes="member: 47318"><p>however, I'm no longer convinced that it actually needs calibrating.</p><p>I took some more test shots:-</p><p>50mm f/1.4 AF-D set to fine-tune=0 (what my D780 says it should be):-</p><p>[ATTACH=full]429018[/ATTACH]</p><p></p><p>and 35mm f/2 AF-D finetune=-5 :-</p><p>[ATTACH=full]429019[/ATTACH]</p><p></p><p>for both shots I back button focused on the cosmetic product box which is exactly in line with the red track nibble thing, so half way between the letter B and H.</p><p>Maybe the 50mm has focused just a couple of mm behind with the H being sharper than the B but it's very little.</p><p></p><p>is it worth messing with to bring the focus just a tiny bit forward?</p></blockquote><p></p>
[QUOTE="dieselnutjob, post: 845624, member: 47318"] however, I'm no longer convinced that it actually needs calibrating. I took some more test shots:- 50mm f/1.4 AF-D set to fine-tune=0 (what my D780 says it should be):- [ATTACH type="full"]429018[/ATTACH] and 35mm f/2 AF-D finetune=-5 :- [ATTACH type="full"]429019[/ATTACH] for both shots I back button focused on the cosmetic product box which is exactly in line with the red track nibble thing, so half way between the letter B and H. Maybe the 50mm has focused just a couple of mm behind with the H being sharper than the B but it's very little. is it worth messing with to bring the focus just a tiny bit forward? [/QUOTE]
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Nikon DSLR Cameras
General Digital SLR Cameras
how to find a "reference" lens for AF fine tuning?
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