I posted a question earlier about recording an image smaller than what is seen in the viewfinder. Discovered that in the Shooting Menu, under "image area" the "Auto DX Crop" was ON.
My question is: How did I switch it ON? I did not make any changes in the Shooting Menu--I did not select Auto DX Crop. The Auto DX crop came on while I was shooting. I must have hit one of the controls/buttons on the camera as I was shooting. Can you tell what I did wrong? (I was using the Nikkor 24-70mm.)