Question about Nikon Nikkor 18-135mm f/3.5-5.6G ED-IF AF-S for Digital SLR

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Just had a 18-135mm Nikon DX G lens Was fine until suddenly its auto focus was not sharp and keeps hunting with a whinning noise at low-moderate light and at longer focal lengths 130-135mm. Motor in lens cranks back and forth, unable to focus and if it does,its out of focused. Camera is ok,what shall I do to get it back to normal operation.Works fine on Manual focus. wooitimothy@gmail.com Malaysia

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  • Nikon Master
  • 3,976 Answers

At longer focal lengths, when the aperture is smaller, and in low light, many A/F zoom lenses struggle. Is it OK outdoors in daylight ? If so, lens is OK.

Posted on Jul 31, 2017

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SOURCE: Nikon TC-17E II with Nikon 70-200mm f/2.8

You may have a dirty contact on the tc cpu pins. Try cleaning the pins with a clean pencil eraser or some methanol. You could also have a loose connection between the tc and the lens or body. Try applying a rotational force in both directions...see if you notice any change in behavior. If you have a local shop, see if you can try another copy on your lens.
The 17e may have slow-ish performance in low light, but it should still be usable. If neither of these issues is apparent then it may need to be exchanged or serviced.

Posted on Jan 25, 2008

SAGHA
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SOURCE: I have a Nikon 18-70 DX kit lens as well and it

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.

Posted on May 17, 2009

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SOURCE: Nikon DX 55-200mm lens

Hi, I had this problem and found that the level inside the camera for the exposure shutter was bent inwards. This was preventing the lens from adjusting the exposure and also from autofocusing. To fix I just bent it back outwards

Posted on May 29, 2009

lifebyguitar
  • 57 Answers

SOURCE: Lens will not auto focus any more.

Hi there!

I experienced the exact same problem with my 100-300mm lens and I was never able to get it to work correctly again. In fact, attempting to use it further seemed to exacerbate the problem.

The further you zoom, the wider the aperture opens allowing more light for the camera to focus properly. If the aperture mechanism is damaged, the auto-focus process may not work as it should; which would explain why the auto-focus feature works only when at 18mm.

Regardless, I strongly recommend you discontinue use of the lens until a professional technician can examine the lens and figure out what's going on. I'm sure you can contact the manufacturer to open a support case or you can find a camera store that offers repair services.

I hope this helps!

Posted on Aug 30, 2009

Testimonial: "Thanks, I'll check with Nikon. I appreciate the help! Don "

  • 1 Answer

SOURCE: squeaking when try to focus. will not focus

I had the exact same problem, took it to a repair shop, and they said the motor had to be replaced completely for $140! The lens is only 18 months old and was not used THAT much! Argh.

Posted on Sep 09, 2009

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I have a Nikon 18-70 DX kit lens as well and it cannot focus either. It will quickly hunts from infinity to close range while making screaching sound. I found that if I point the focus point at a lamp,...


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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Which camera are you using? If the body has AF/MF switch, put that also to MF.If this fails to help, take out the lens and try to change it to MF.

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Hey Embroiteri,
I hate giving out bad news, but it sounds to me like your focusing motor is broken. I am of course going on the assumption you have the camera set to AF mode, and the lens still doesn't focus. In my experience with SLR lens is that if there are scratching or grinding noises when either focusing or zooming there is almost always something broken inside.

Sincerely,
Allan
Go Ahead. Use Us.

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