Question about Nikon D40 Digital Camera with G-II 18-55mm Lens

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Nikon D40 will not focus when shutter pressed 1/2 down

I am using a Nikon D40 with a Nikon DX AF-S NIKKOR 18-55mm 1:3.5-5.6 GII ED lens.

Have had the camera for 1.5 years, and it has worked just fine with the exact same set up until now.

When i press the shutter button half way down (no matter what setting the camera is on) it does not make any mechanical focusing sound and (obviously) cannot focus into any target. I cannot take any pictures due to this.

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  • rblancha Feb 07, 2009

    Yes, the physical AF switch that is located on the top left of the lens is set to A.

  • MiniLaura Feb 22, 2009

    I'm having the same problem, too. And yes, I made sure the lens was on Autofocus. When it is having problems focusing I can hear a faint clicking sound like it IS trying to AF but is unable to do so. When I switch to MF, I can turn the ring freely and focus manually, but I want the AF to work!

    I'm wondering if the problem is with the lens or the camera since the AF motor is in the lens not in the D40/x body. I've switched to another lens to test this theory.

    However, the problem does not happen all the time, so I have problems reproducing it. If I do have the problem with the new lens, I'll try cleaning the contact as kalansing has suggested.

  • drderekp59 Mar 07, 2009

    i have the same problem. sometimes when i first pick up my camera the autofocus does not move and makes a faint clicking sound. if i switch it to MF, turn the the ring and switch it back to AF it will start to work normally, although sometimes i have to repeat this 2-3x before it works. after that the camera works normally for as long as i use it. does anyone know what is causing this? the camera is only about 2 months old. is this a sign of trouble to come and should i look into having anything done to it while still under warranty?

  • evillafane Mar 16, 2009

    I had the same problem. Sent the lens to Nikon (under warranty). They repaired it, but would not be explicit as to the problem. I believe the changed the motor. It came back with a more silent, faster focusing... until it happened again. The problem apparently appers after using the lens repeatedly while using the built-in flash or the 400.

  • michael galang May 11, 2010

    have you set the AF switch on the lens to 'A' ?



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Has the lens stuck up? put it temporarily on 'M" and try to turn the focus ring. this should be freely turning;

otherwise you may want to check the camera body to lens electrical contacts (silver).. a small dab of alcohol to a q-tip.. make sure its not that wet..then try to clean the contacts.

Posted on Feb 09, 2009


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