I been reading about BBF ing and set up my Nikon D7000 for the AE_L/AF_L button. My left eye is my master eye (and I wear glasses) and I view the view finder with left eye; which, I find very difficult using the BBF button. I've not seen any comments on this. Do other people all use their right eyes? Seems the cameras are set up tse the right eye. i have a hard time even looking through view finder with right eye. Any comments or suggestions welcome.....