#15. "RE: Another minor mishap with my D800e...." In response to In response to 4
That could have been me. With heavier lenses, I found I was gripping the camera more and my finger was getting on the lens release button. When you press it, the camera will not focus - in my case. In addition to touching the lens release button, I was accidentally rotating the lens a slight bit, making it not focus. After I realized what I was doing, I changed my grip and it never happened again.