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Old Jun 25, 2007, 11:13 AM   #1
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Hey all. I have a DSLR Nikon DX AF-S Nikkor 18-55 3.5-5.6 Aspherical Lens (whew), i.e. a plain old regular digitalAF lens.

Some time ago, I must have gotten sand in it on the beach or something, and since then it has the following problem. In Autofocus mode, it will focus, overshoot the best bocus, then backtrack, overshooting again, over and over. In other words, it will keep focusing back and forth past the correct focus, but never get the actual focus. Anyone have experience with such a problem? Anyone know how it can be remedied?

Thanks....
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Old Jun 29, 2007, 11:37 AM   #2
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What kind of light conditions? Autofocus systems need enough light to see contrast and work properly. Just my thoughts. .
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Old Jul 9, 2007, 8:53 PM   #3
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It seems to happens regardless of conditions. But I also noticed, the AF assist lamp barely goes on in with that lens either. It may go on shorty then go off, or not go on at all. It seems almost like that after a few seconds the camera gives up and says "oh wel,, not gonna get it right, better give up with the lamp", then it won't use the lamp at all after that unless I cycle the camera.
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Old Jul 10, 2007, 4:41 AM   #4
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Try another lens and camera bring to the shop and check, you will know which one is failing.


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