Nikon-zoom problem

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Blighty

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Oct 11, 2004
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Fellow Apuggers,
My Nikon 20~35 f2.8 zoom has developed a problem. Just to familiarise you with this lens; it employs a manual/autofocus button on the lens. Once AF has been selected on the camera body, AF can be engaged/disengaged on the lens as necessary. Whilst using AF, the focus ring rotates freely. Trouble is, after using AF and returning the lens to manual , the focus ring doesn't 'pick-up' the focus gear inside and continues to rotate freely. After turning the focus ring for some time - first one way and then the other - it will eventually re-engage, but it seems to be getting worse and taking longer each time I use it. Curiously, it seems to be more troublesome when it's cold. Any thoughts? Many thanks, B.
 
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Blighty

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Sorry, I just realised I shoud have posted this on the repair, cam mod bit.
 

archphoto

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Dec 14, 2008
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It sounds like a lubrication problem, hopefully, than just a CLA will do the trick.
As grease (and oil) gets older it becomes more sticky.
When you put your lens into AF it dis-enganges the connection between the ring and the real focussing mechanism.
When you put it into MF again it should engage quickly again.

Peter
 

nicefor88

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Mar 4, 2009
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Bruxelles, B
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I agree, send it to service, it's not a big problem. I had a similar problem with a nikkor zoom but it seems a plastic part was the culprit. Darn plastics! It makes lenses lighter, all right, but they are so annoying...
:mad:
 
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