I was out with my D7000 over the weekend photographing a speedway meeting. At one stage I was moving though the focus AF modes using the AF mode button, whilst looking at the control panel.
After toggling through the various options, I noticed in the control panel the image recording quality setting was displayed in the bottom left corner of the control panel with nothing else showing. Then, a few seconds later the lenses started focusing on its own; you could see the lens moving out and then back in again.
I was just holding the camera and I hadn't pressed the shutter release or any other button that (as far as I am aware) would start the lens focusing. It only happened once and hasn't happened before, but I wondered if this was a sign of looming problem.
The camera was bought second hand but it is still covered by a warranty.
Any comments or suggestions would be gratefully received.
>After toggling through the various options, I noticed in the >control panel the image recording quality setting was >displayed in the bottom left corner of the control panel with >nothing else showing. Then, a few seconds later the lenses >started focusing on its own; you could see the lens moving out >and then back in again.
Sounds like you may have accidentally gone into Live View mode.
I've had the focus start by itself while using a 300mm f4 & tc-14e and few times on my D7000. I not 100% sure but believe it was a contact issue between the lens/tc/camera combination as there is a little play when everything is connected. I just turn the cmare off and on again and it seems clear things up.
I had this happen once with a D7000 I owned when attached to an 18-200 VR1 lens. I turned the camera off, took the lens off and remounted it making sure it rotated all the way to lock. It never happened again.
Thanks to everyone that has come back to me on this subject. I'll ensure that all terminals are kept clean and if it happens again I'll switch on and off, which sounds like it will sort things out. Again, your help and advice is really appreciated. Kind regards, Simon