I bought my D50 back in 2006, but took about a year hiatus from it due to my only lens breaking. I bought a new lens this year for it and used it for about 3 days before the autofocus stopped working. I can use the AE-L AF-L button beside the viewfinder and it will autofocus fine, but when I half-press the shutter, it doesn't autofocus at all. What I'm wondering is if someone would know whether that denotes a problem in the lens I just bought, or the camera body itself. I guess I'm hoping its the lens since that's still covered in the warranty, but any answer would be extremely helpful. Thanks for your time.
Well, a friend of mine was able to fix mine fortunately. I am such a beginner with cameras that the only thing that was wrong with mine was a setting in the menu (d'oh!).. Yours sounds really weird though and I wish I knew more about cameras to be able to help you. I'd suggest taking it to a camera store soon and asking if this is a common issue or if they know what part could control such odd behavior. Hopefully someone else on here will read yours and post some better advice, sorry I don't know enough to help, good luck with it though!
I am having a similar problem with my D50's shutter. My problem seems to be related to the position of the camera. If I rotate the camera vertically to the left - it functions fine. Rotated to the right - it acts as is as if the shutter button is not working at all. Horizontally positioned - the shutter works about 85%of the time. Is your problem positionally influenced as well?
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This lens lacks the autofocus motor, so it will only autofocus on cameras with the motor. This lens will autofocus on every Nikon digital SLR except for the D40, D40x, D60, D3000, D3100, D5000, and D5100. It will autofocus with the D1 family, D2 family, D3 family, D50, D70, D70s, D80, D90, D100, D200, D300, D300s, and D700 (I hope I haven't left any out).
We tried the same lens on another Nikon (D90) and auto focus did not work.
We mounted a new set of lens on the original D40x, and it worked.
Turns out the 2 year Nikon lens (18mm-135mm) was bad. Nikon lens have a 5 year warrantee. The lens will be sent back to Nikon with no service or shipping charge.
Auto-focus technology on this camera is controlled by several contacts on the mount that physically mate with other contacts on your lens. It sounds like your mount may be malfunctioning due to wear and tear (if cleaning does not work). This is between $100 and $300 fix depending on which part(s) need replacement.
First try another lens on the body and see if the problem is the lens or the body,if its the body the autofocus mirror could be out of adjustment, if its the lens, it sounds like the lens took an impact and needs a pro repair. you should be able to set body to manual focus and focus lens to infinty.
Same happened to mine ,Its almost as though the motor has dis-engaged.I SOLVED MINE BY FORCING THE FOCUS RING WITH AUTOFOCUS ENGAGED THIS SEEMS TO HAVE RE ENGAGED THE MOTOR .HOWEVER BE CAREFUL I HAD LITTLE TO LOSE MINE WAS STILL UNDER WARRANTY WHEN I DID THIS.Its perfect since.