Greetings fellow Nikonians. Although I am new to this group, I have been using Nikon equipment since my first 35mm camera, a Nikkorex F. Since then I have owned a Nikon FM, D70, D300S and now my newly acquired D600. (No dust out of the box, but a few specks after about 500 clicks) To my question. I am going to try to shoot a time lapse of the Milky Way. Since the autofocus will not be usable with a mostly black sky, is it good enough to just set my 50mm f/1.8 lens to infinity? I have tried focusing on mountains that are two miles away and the focus dial doesn't seem to move from the infinity position. I will be shooting at f/2.8 and even with a shallow DOF I would think that two miles would, for all practical purposes, be infinity. Any comments?