Quote Originally Posted by chuzmarobot View Post
There are times when I am in Manual Mode but I cannot switch the Aperture. I can change the Shutter Speed just fine but the Aperture locks. My only option is to turn the camera off and on. Any idea what may cause my D7000 to do that?
The only way I can not get the aperture to change is in live view just as Raymond has stated. You might check out the video he provided the link for and see if that gives you your answer. Jeff