Question about Tamron 18-250mm F/3.5-6.3 AF Di-II LD Aspherical (IF) Macro Lens for Konica Minolta and Sony Alpha D...

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Lens will not focus, just searches continualy, all other lenses work fine, was working fine then would not focus.

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  • 3 Answers

Does the camera recognize the lens? I mean does the camera just say F--- or does it show all the information for the lens?

Posted on Nov 04, 2013

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Posted on Jan 02, 2017

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cammedic
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SOURCE: EF-S 17-85mm will not auto focus on fuul zoom my

A dirty filter or smudges/marks on the optics, especially the rear element can cause focus issues. Cleaning the pins contacts on the mount of the lens can be a simple solution too. Beyond that, circuit replacement is the next likely step.

Posted on Jun 06, 2009

  • 146 Answers

SOURCE: Nikon 18-55 zoom lens doesn't autofocus

You might like to check if the A/M slider switch on the lens by the Nikon label is set to A.
It sometimes gets moved accidently.
Set to M the lens will not autofocus.

Posted on Jul 04, 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 "

  • 63 Answers

SOURCE: 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

Posted on Apr 16, 2010

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If the camera is used you may have a problem with the seller. Before jumping into conclusions however read your manual for your solution or simply search youtube for a help video. Hopefully this helped.

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Hello,

are your old film lenses FD or EF mounts ?
(Is the old film camera a Canon ?)

EF will fit EFS fine. My expeariance is with the EOS 3000 EF film camera (2002 -etc) and these work fine.

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1 Answer

Lens


If this is a manual focus lens, you will need to do two things (and an optional third thing.)

1) On the side of the camera, you have to switch the focus mode switch from "AF" (Autofocus) to "MF" (Manual focus) . . . Yeah. I know, you probably already did that. <grin>

2) When you press Menu, go to the Custom Setting and change the Allow aperture setting to on, so that the Pentax K100D will then work with manual control of the aperture ring. You need to do this or the K100D will not work with manual exposure lenses (M lenses) or even autoexposure lenses (KA, KA2, FA, etc.) when you move the aperture ring from the "A" position to one of the manual aperture settings!

3) This is optional, but in the Custom Setting you can also turn on the Fl in manual focus mode, so that even though you don't have autofocus capability, you will get a beep indicator when you have successfully managed to manually focus your lens.

I have a few nice manual focus lenses that I have a lot of fun playing with on my K100D.

Take care & Happing Imaging!
Glen
:)

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HELP Sigma 24-60MM wide Angle


The helicoid or the barrel thread in the lens may be jammed. The lens will have to be serviced. You should take it back for warranty service.

As for myself, I aways buy origional manufacture lenses and accessorites for my cameras.


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How does it stop working? Do you mean it doesn't auto focus anymore?
Many longer focal length lenses wont auto focus with 2x teleconverters on them.

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