Before the rush

Before the rush
by evan-pak

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

A good friend of mine has a d5100, which was working perfectly fine yesterday. Today, however, it refuses to autofocus at all - it makes no effort to move the focusing ring etc.

I have tried everything I know, from the obvious (making sure it's set to auto, not manual focus), to the less obvious (changing AF-L settings, trying Live View), to the downright desperate (trying every mode, random setting, and a menu reset) among others. I have also tried changing lenses, but the problem is the same.

This points to the problem almost certainly being in the camera body. The lens contacts are clean, the lenses were correctly fitted and it was bright enough to autofocus.

Currently I have no ideas other than a faulty shutter release button, broken circuitry (unlikely), or some bizzare instant-burnout of the lenses' AF motors.

Please, does anybody know anything about this? Thanks in advance, I will be eternally grateful (and owe you a beer/wine/tea/soft beverage if we ever meet!).

share|improve this question
Try another lens if you could get one and see. – Regmi Apr 15 '13 at 23:15
up vote 3 down vote accepted

check if all these have the right settings.

1) on the lens, the slider control to switch between manual and auto focus

2) in the camera setting, switch the auto focus "on"

3) in the camera setting , set the focus mode to "continuous mode"

if these options are all right, then your camera must be able to auto focus. but if not then there definitely may be a shutter release problem as you said.

just check if the shutter release actually works or not. ? is it able to shoot a photo (in manual focus)

you can also try and get a remote shutter release and try if the semi-click helps in focusing.(this will clear the doubt if the fault is with the shutter release button on the camera)

if nothing works, the same ---- head straight to the authorized service center :)

share|improve this answer
Thanks, but yes, I tried all those, except the remote :( The shutter works in all modes, but perhaps it's just the first 'click' that's broken. I shall try and find a remote, otherwise I agree, a trip to the shop will be in order... Things will get expensive – Tyrone Apr 16 '13 at 13:04
It's fixed! Turns out that there's yet another AF setting, which is a bugger to find, and somehow isn't affected by the reset... – Tyrone Apr 19 '13 at 13:33

protected by Community Dec 14 '13 at 13:59

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

Would you like to answer one of these unanswered questions instead?

Not the answer you're looking for? Browse other questions tagged or ask your own question.