I have used the D300 for the past few years and found that I was finally getteing confident with my photography and my camera. So I made the jump to the D800. My first full frame. I have always read that once you go to full frame your photography and the images will improve. But what I have found was that I felt like I was starting photography over again. Using my flashes is different, I have a hard time getting tack sharp images, my depth of field seems to be very shallow even at f11. Is depth f field different on full frame? I just find myself grabbing my D300 when I have to shoot something important because I can't trust that I'm going to be able to get sharp, usable images at the same settings on both cameras. I need clarity on what should I have expected jumping to the full frame D800?