What is your custom setting for AF Priority? If set of FOCUS the camera won't take a picture unless it is in focus. Could be when you press BBF button it resets the focus and then the picture is taken.
sumo wrote:
Last night I set Nikon D600 to Scene and selected Party Indoor
I use back button focus.. when composing a shot at the party
.I press the shutter and nothing happens, (except maybe the flash will pop up), push the shutter release button again, nothing!! However, when I press the back button focus again, the picture is taken. do you think this is normal? I can not find anything in David Buschs. book about this nor in the Nikon manual.