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Nikon DSLR Cameras
D750
lens repair
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<blockquote data-quote="BF Hammer" data-source="post: 835440" data-attributes="member: 48483"><p>[USER=13196]@hark[/USER] : I read this as his 70-200mm f/2.8 lens as the problem. Aperture opening should not be the issue.</p><p></p><p>It's worth trying to clean the electrical contacts in the mount of the lens and camera body. Use cleaner applied to a swab if you can. Lint-free cloth otherwise.</p><p></p><p>But I also suspect it could be a small crack in a gear for the autofocus drive. As in the motor can torque past the crack when it is in motion but if the focus parks on the crack itself the motor cannot overcome the drag. In that situation, buying a used replacement could be in the neighborhood of the cost of getting this one repaired.</p></blockquote><p></p>
[QUOTE="BF Hammer, post: 835440, member: 48483"] [USER=13196]@hark[/USER] : I read this as his 70-200mm f/2.8 lens as the problem. Aperture opening should not be the issue. It's worth trying to clean the electrical contacts in the mount of the lens and camera body. Use cleaner applied to a swab if you can. Lint-free cloth otherwise. But I also suspect it could be a small crack in a gear for the autofocus drive. As in the motor can torque past the crack when it is in motion but if the focus parks on the crack itself the motor cannot overcome the drag. In that situation, buying a used replacement could be in the neighborhood of the cost of getting this one repaired. [/QUOTE]
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Nikon DSLR Cameras
D750
lens repair
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