Hi There. I'm very new to the Nikon D3100 camera. While I'm slowly getting acquainted with it, I do notice that I am unable to take a photo using the eyepiece. The test flash comes on, but no picture is taken. This happens in the Auto mode and in the other modes as well. I find I need to hit the switch to Live View and them I'm able to take all the photos I want.
Any idea why this may be?