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Photography Q&A
why no focus motor in an FTZ adapter?
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<blockquote data-quote="BF Hammer" data-source="post: 813274" data-attributes="member: 48483"><p>I too think it could have been implemented if Nikon wanted. Actually the first generation FTZ had that extended squared-off bottom that I strongly suspect contained the autofocus servo motor in prototype stage and was deleted as it was developed.</p><p></p><p>But looking at the prices of things, it appears the profits are in the lenses more so than bodies. So why discourage upgrading to those expensive new Z lenses by giving us the ability to use every old lens easily? However the mirrorless Z is still the best experience for manual-focus of lenses. Focus peaking is a fantastic tool for those lenses, even better than having the old split-prism viewfinder.</p><p></p><p>But my personal experience with using older screw-drive autofocus lenses on DSLR cameras was not as great as I thought it would be most of the time. For starters, most of the lenses just take forever to find focus compared to new lenses with internal motors. And something that nobody ever brings up is that the old lenses were made for film. Film that is normally a flat, not-reflective material so there is not much need for anti-reflective coating on the inside lens element. But digital sensors are all glossy and shiny, and they cause all kind of reflection inside those older lenses if more direct light gets inside. I used to be confused by green and magenta flares in my outdoor photos until I realized it was my sensor reflecting light back at the rear of the lens. I had more than one screw-drive vintage lens that did that.</p><p></p><p>And everybody who only has owned the lower-end DSLR models are scratching their heads because they never had autofocus screw drives to play with all-along. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="BF Hammer, post: 813274, member: 48483"] I too think it could have been implemented if Nikon wanted. Actually the first generation FTZ had that extended squared-off bottom that I strongly suspect contained the autofocus servo motor in prototype stage and was deleted as it was developed. But looking at the prices of things, it appears the profits are in the lenses more so than bodies. So why discourage upgrading to those expensive new Z lenses by giving us the ability to use every old lens easily? However the mirrorless Z is still the best experience for manual-focus of lenses. Focus peaking is a fantastic tool for those lenses, even better than having the old split-prism viewfinder. But my personal experience with using older screw-drive autofocus lenses on DSLR cameras was not as great as I thought it would be most of the time. For starters, most of the lenses just take forever to find focus compared to new lenses with internal motors. And something that nobody ever brings up is that the old lenses were made for film. Film that is normally a flat, not-reflective material so there is not much need for anti-reflective coating on the inside lens element. But digital sensors are all glossy and shiny, and they cause all kind of reflection inside those older lenses if more direct light gets inside. I used to be confused by green and magenta flares in my outdoor photos until I realized it was my sensor reflecting light back at the rear of the lens. I had more than one screw-drive vintage lens that did that. And everybody who only has owned the lower-end DSLR models are scratching their heads because they never had autofocus screw drives to play with all-along. :D [/QUOTE]
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Photography Q&A
why no focus motor in an FTZ adapter?
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