Question about Nikon D40x Digital Camera

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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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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

Posted on May 15, 2008

  • 1 more comment 
  • Amber Engman 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...

  • Amber Engman 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

  • Amber Engman 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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Have a look at troubleshooting on your manual.
http://www.nikonusa.com/pdf/manuals/noprint/D40X_en_noprint.pdf

Posted on May 15, 2008

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1 Answer

It won't take pictures sometimes. push the shutter button and nothing happens.


The Nikon D40 in Auto Focus mode will only allow the shutter to operate when the image is in focus. When looking through the viewfinder, the bottom edge provides information relative to what you are looking at. See the image below:

steve_con_1.gif

Item 2 is the focus indicator. It must be illuminated to allow the shutter to release. If it is not illuminated, the lens has not been able to determine the correct focus. This can happen when attempting to take a picture in low light conditions. Make sure that the front facing "focus assist lamp" on the camera (between the shutter release and lens) has not been blocked or disabled (Settings Menu # 09) and try again. Many times, you will see and or hear the lens "hunt" for proper focus - the lens will travel from one end of its focus range to the other trying to find focus. When it can't, it stops and prevents the shutter from releasing. You can get around this "unable to focus" issue by changing the position of the switch on the lens to "Manual Focus" mode, detailed below:

If a lens has an "A - M" switch, move it to "M" to manually focus. If the switch says "M/A - M " then leave on M/A (unless you're going to be taking several or more in manual mode), as these lenses may be focused manually at any time in either position. As soon as you tap the shutter button in M/A you return to autofocus.



More advanced lenses, like the 18-200mm, 70-300mm VR and 18-135mm, and any lens with an M/A position, may be focused manually at any time without moving any switches. Leave them in their A or A/M positions.

I hope this helps and good luck!

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you should change the focus lock to AF-S, instead of AF-C

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Nikon D40 will not autofucus.


Check if the swithch on to your left on the lens set to 'A'. If it is set to M this will be in manual mode and autofocus does not take place.
If this doesn't help, try removing the lens and re-fixing it firmly and properly.
Trust this helps.

Dec 16, 2009 | Nikon D40x Digital Camera

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The Autofocus does not work on my Nikon D40


1 Possiable dirty lens contact terminals
2 Auto focus motor in lens is jamed/malfuntion
3 Auto focus engagement pin on camera body is not engaging the lens
4 Correct lens,old nikon lens and some 3rd party lens wont work on the D40

Jul 18, 2009 | Digital Cameras

1 Answer

I, too, am raising my hand on this?D40 with same autofocus problem, with all AF-S lens, 18-35 kit, 18-135, 18-200 VR, 50-200 VR. No solution after trying all above.


Please give more detail on this problem .
Have you tried another AFS or G lens.
Also the af switch could be turned off or the
back focus button could be set inthe custom menu .

Apr 05, 2009 | Nikon D40x Digital Camera

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A/F PROBLEM


The D40 (& D40X & D60) will not autofocus with the G series lenses. The three cameras above require a newer DX series of lenses for the AF to work.

Jan 04, 2009 | Nikon D40 Digital Camera with G-II 18-55mm...

2 Answers

My d40 won`t take pictures


Try Blow cleaning the Memory card slot ... sometimes dust does that

Oct 05, 2008 | Nikon D40 Digital Camera with G-II 18-55mm...

2 Answers

Autofocus will not work,


Camera wont let you take a picture until focus is locked, why are you using M (manual focus) if you expect autofocus to do it for you? In M mode it is up to you to focus correctly or camera will not take the picture.

Apr 13, 2008 | Nikon D40 Digital Camera with G-II 18-55mm...

2 Answers

Nikon d40 digital camera


When the camera is in auto focus mode, it will not take the picture until it locks onto a subject. If there is not enough light, the camera will "hunt" for something to focus on. Since it can't define any edges, it won't allow the shutter to release.

The D40 base model does NOT have a powered focus lever for autofocus, so if the autofocus is not working, suspect the lens.

Mar 23, 2008 | Nikon D40 Digital Camera with G-II 18-55mm...

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