Here is quick tech tip, I generally do not use mirror lock unless I have a shutter speed near 1/15 of a second or if I’m shooting with a focal length of beyond 200mm. Before live view it took slightly longer get set up on mirror lock by going into the menu to activate mirror lock up and again going into the menu to exit the mirror lock up mode. Now with live the mirror lock up is availble in one push of a button. The vibrations from the mirror flipping up and down are down when you need it most. That’s just one extra reason why live view is one of my demands on a camera body.