I have a problem. My Nikon D7000 is not talking to my lens, well both actually. I have a f2.8 70-200 and 15-70. Neither are focusing when I press the shutter, any ideas please? I've had a problem with the camera since the beginning, sending it back 4 times already!! I've re set the camera, but still the same. Thanks in advance.
One thing to check is make sure the AF/M switch on the camera body is set to AF and not M. Its located below the lens release button.
I also had a problem when switching lenses. I had to seat the lens a couple of times before it made contact and would focus. I cleaned the contacts on my lenses and camera and havent had the problem since.