I have a Nikon N60 and just bought a Nikon SB-20 flash. I understand it does everything except use the "D" feature of the body. Can someone explain to me what this means? I know that "D" means distance, but I also know that the closer I hold the camera to an object, the less amount of light the flash emits. Isn't this some sort of "D"? Thank you all for all your help! Brian