So my D300 can shoot at 12 or 14 bit depth. Photoshop tells me the images are 16 bit depth, though I assume that's just because Photoshop is designed to handle 8 or 16 and is rounding up... but I don't know. I could make the rash assumption that I always want to shoot at the highest bit depth possible, but I'm not sure I can visually see much difference between them. What am I missing? Is my monitor just lacking the color range? Is it something somewhat imperceptible? Perhaps something I should be concerned about primarily when printing and not worry otherwise? Or... some other thing?