Ive got the nikon d40. when i take photos close up they are blurred. there r 2 settings on the focus lense one is letter a one letter m. you have to move switch to indicate one or other. camara wont take...
The letters you're referencing is the M/A (manual / auto) focus switch. The lens has this switch and operates in Auto Focus mode when set to "A" and manual focus mode when set to "M".
You have to manually focus on the subject when in letter "M". If you do not, the result will be out of focus. From your description, it sounds like the camera / lens combination is attempting to focus and operate the shutter in auto, and focusing in manual; but due to some type of damage resulting from possible mishandling, exposure to dust, dirt or even moisture is interfering with the successful completion of the process.
You could isolate the problem to determine if the cause is in the lens or camera by simply attaching the lens to another compatible Nikon camera or placing a different auto-focus lens on your D40. The problem will either stay with your D40 or follow the lens when attached to a different camera. It is also *possible* that due to numerous attempts of auto-focusing with your D40 & lens combination, that both the lens *and* the camera have been damaged. If the problem is severe enough, the problem in the failed device could cause failure in the otherwise normally working device, too.
You might be best served by contacting Nikon Service & Support below:
http://www.nikonusa.com/Service-And-Support/Service-And-Repair.page
You also said you lost your manual. You can download the manual for the D40 directly from Nikon in your choice of English, French or Spanish from the link below:
http://support.nikontech.com/app/answers/detail/a_id/14157/session/L3NpZC9YRTgxQVpKag%3D%3D/kw/D40%20manual/p/19%2C334/c/187/r_id/116678/sno/0
Good luck!
I am having a plobrem with the auto focus - the camera won't take pictures when on auto focus and if I focus manually it takes picture.
I have the same problem. Both the lens that came with the camera and the Nikon digital lenses I purchased won't work on auto focus. Seem only to work on manual. very frustrating
Autofocus on my 55mm lens just doesn't work yet when I change lens to a different one it works fine!
I have the same problem!!! What do I do?
This is crazy, I have the same problem! I bought a new Nikon D40 kit a fortnight ago together with a Sigma 70-300mm zoom lens. The Sigma works perfectly (bit noisy but great value) yet the 18-55mm AF-S DX Zoom-Nikkor supplied with the kit doesn't work! How can they sell a camera kit with a lens that doesn't work? I thought I'd missed something in the manual, but it doesn't work on Auto or Manual. What is going on??
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