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Posted on May 15, 2008
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Nikon D40 won't autofocus

Newer Nikon D40 camera with 18-200 VR. Won't autofocus but sounds like it is trying. Manual focus ok.

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  • rgrainger May 15, 2008

    I have a Nikon Nikkor AF-S 18-200mm lens

  • rgrainger May 15, 2008

    I have it set on AE/AF Lock
    I have it set on AF-S

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2 Answers

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  • Posted on May 15, 2008
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Which lense are you using?
Non AF-S and non AF-I lenses will not autofocus at all
The old 300 mm f/4 AF has to be put in the M position to focus and it only focuses manually.

let me know
good luck

  • 1 more comment 
  • Anonymous May 15, 2008

    Here is a link to a user guide written by an actual user.

    Very reader friendly and very explanitory.

    I think you might find it interesting and helpful.

    http://www.kenrockwell.com/nikon/d40/use...

  • Anonymous May 15, 2008

    And what setting do you have the AE-L/AF-L on?



    AE / AF lock? AE lock? AF lock?

    And do you have it set on AF-A, AF-S, or AF-C?

    thank-you

  • Anonymous May 16, 2008

    So some info for you, hopefully this helps.

    Sorry if you already know all of this.



    AF-S stands for AF-Single. The D40 focuses once, then locks the AF for you to recompose the shoot.



    AF-A magically selects between AF-S and AF-C.



    Try setting the camera to AF-A while leaving all other settings where they already are and see what happens.



    I look forward to hearing more.

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  • Posted on May 15, 2008
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