Question about Nikon 85mm F1.8 D-AF Lens

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Hi, just wondering if I should try an dismantle my 85mm 1.8 Nikon lens as the focus ring has slowly but surely stiffened up to the point it will no longer rotate- AT ALL! No budging. My brother tried to rotate it, but the rubber grip has now come loose, and slipped off. I fixed an oil problem on my 50mm aperture blades the other day, so I was wondering if I should go in the same way, if I should at all? Thanks, Matt

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If you have a lens collimator and other equipment required to ensure the proper alignment of the lens elements when you reassemble the lens, then go for it. If you don't have the gear needed to reassemble the lens properly, then I strongly suggest taking the lens to a good camera shop and have a trained professional do a clean-lube-adjust. It won't do you much good to have a focusing ring that turns if the lens elements are out of alignment so it doesn't focus properly.

Posted on Dec 23, 2011

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HI I AM SAGHA FROM MUMBAI I AM A REPAIRER AND I THINK UR PROBLEM IS NOT SOLVABLE BY YOURSELF YOU HAVE TO TAKE THE LENS TO EXPERT THERE YOU HAVE TO GET THE AF SENSOR CHANGED.THIS WILL SOLVE YOUR PROBLEM DON'T TRY ANY MORE ADJUSTMENTS WITH CAMERA IT MAY CONFUSE YOU MORE.

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