Question about Nikon Normal AF Nikkor 50mm f/1.8D Autofocus Lens

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Nikkor 18-55mm lens on Nikon d50 locks up in autofocus mode.

When the camera is completely in autofocus mode, the lens will lock up and not autofocus on center object or any other spot in view. (Yes, I checked the menu settings, and it's set correctly.) The lens itself will also "lock" into place and it is very hard to twist the lens to get it to move. I've also recieved an "err" when trying to take a picture and took the battery out in order to get teh camera to work again. The camera will also not take any pictures at all when pushing on the button.
Thanks for any and all help in this!!!

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The "err" is generally when you have the aperture set to something other than "F22" with the aperture lock on. As far as the lens, you should take a pencil and use the eraser end on the electrical contacts both on the lens and camera and ensure that they are clean. Often times, cameras will respond, but not fully, if some of the contacts have build-up on them. If this still doesn't work, take the lens to a camera shop or ask a friend to borrow their nikon and try using the lens on a different camera to see if it is indeed the lens or the camera. Doing this will help you determine which needs to go to the repair shop.

Posted on Oct 01, 2009

Testimonial: "Thanks for your help! I'm taking it in today to get it cleaned and checked out."

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My Nikon Nikkor 18-135mm f/3.5-5.6G ED-IF AF-S for Digital SLR lens does not seem to auto focus well. Sometimes the lens will focus and unfocus and refocus constinely. Is this normal??


You did not say which camera body you are using, but you probably have three different auto-focus modes on you camera. You might be using the wrong one.

The modes are as follows:
AF-A Mode: Camera automatically selects single-servo autofocus when AF-A subject is stationary, continuous-servo autofocus when subject is moving. Shutter can only be released if camera is able to focus. AF-S Mode: For stationary subjects. Focus locks when shutter-release button AF-S is pressed halfway. Shutter can only be released when in-focus indicator is displayed.
AF-C Mode: For moving subjects. Camera focuses continuously while AF-C shutter-release button is pressed halfway. Photographs can be taken even when in-focus indicator is not displayed.

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What digital nikon cam works autofocus in a nikkor micro AF 105mm f/2.8D?


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Make sure you set the aperture ring on the lens to its smallest setting (largest f/number) and lock it. Without doing so, the lens will not communicate properly with the camera and thus you will not get the autofocusing.

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1 Answer

Nikon D50 with Nikon DX 18-55 lens will not focus


Hi,
Sorry to hear about your lens. If you are able to autofocus and take pictures with any other lens, then it means that your problem lies with the kit lens. If you can take picture in manual mode, but not in autofocus mode, then the AF motor in the lens in not functioning. I had the same thing happen to my 50mm 1.4 lens.

Depending on your location, there are Nikon repair centers in Melville, NY and Torrance, CA.
Hope this helps,
Andrew

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Can I use an old FM2 lens with the D50?


It'll work, though you won't be able to meter through the lens. And of course no autofocus, but I'm sure you already knew that.

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Is the switch on the side of the lens set to manual or auto? Sometimes it's the little things like this that we don't notice.

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1 Answer

Nikkor 18-55 lens autofocus problem


That usually indicates that the lens is not communicating with the camera. The contacts on the mount side of the lens may be damaged or dirty. If cleaning the contacts with an eraser doesn't solve the issue, you might want to try another lens to see if the camera is at fault. If the camera checks okay with another lens, then it is likely the the lens needs a new circuit board

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1 Answer

Sigma 70-300mm DL Macro Super Lens compatibility for Nikon D40X DSLR Camera


Here is Nikon's specs of lens compatibility for the D40X:


Compatible Lenses*: Nikon F mount with AF coupling and AF contacts Type G or D AF Nikkor:
1) AF-S, AF-I: All functions supported;
2) Other Type G or D AF Nikkor: All functions supported except autofocus
3) PC Micro-Nikkor 85mm f/2.8D: Can only be used in mode M; all other functions supported except autofocus
4) Other AF Nikkor*â¹/AI-P Nikkor: All functions supported except autofocus and 3D Color Matrix Metering II
5) Non-CPU: Can be used in mode M, but exposure meter does not function; electronic range finder can be used if maximum aperture is f/5.6 or faster
6) IX Nikkor lenses cannot be used
*â¹ Excluding lenses for F3AF

They do not recommend 3rd party lenses, ever

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1 Answer

Sigma 170-500mm APO lens on Nikon D50 won't autofocus or shoot


When you get a flashing EE, it means there is an Eror somewhere. Most cameras have a botton you press to reset it. Usually it is the battery check button. Try that. Also try taking the lens off the camera, unlocking the aperture ring, remount the lens and then lock the aprture ring to the minimum F stop. I think this should solve the problem.

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