I was trying to get low key shots in pretty dark conditions and had my Nikon D7000's 18-105mm VR kit lens in manual focus, to try to get the subject in focus in very low light. In the process, I kept turning the focus in one direction for about three or four complete revolutions.
Long story made short, I couldn't get the shot to work. Worse off, the next day, I wanted to go out shooting and found the auto focus didn't work at all.
I tried another lens on the D7000 body and it worked fine.
I can hear the kit lens making sounds but nothing is moving. Typically the lens moves itself as it focuses when depressing the shutter half way.
When I turn off VR, it doesn't make any noise and nothing is moving.
I can manually focus while depressing the shutter half way and playing with focus until I get a green circle in the view finder. This is a huge pain!
Is the lens ruined? Can I fix it? I never had this happen before so I'm not sure how to best handle this.
Edit: I did feel a speed bump as I wound it. The ring was turned way past the small resistance point in the focus ring. (about 2 revolutions past that point)