My grandfather just sent me his nikon n4004s camera a few weeks ago, but there's something I still don't get. There are 2 aperture dials, one on the lens and one on the body. I didn't know the dials even existed on bodies, but both are clearly labeled in the manuals. I don't know how it works out. From what I can tell the one on the body does nothing, unless you have it set to automatic. Twisting the dial on the lens is the only thing that seems to change the light meter. But still, it's confusing and I can't find an answer! Anyone know what's up?