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    Reversing my lens..NEED HELP!

    Hello! I recently bought a reversing ring and am attempting to figure out how to use it. I have a Nikon D80 with an AF-S Nikkor 18-135 mm 1:3.5-5.6 G ED lens. I reverse it and cqn see through the viewfinder, but when i take the picture there is just black on the screen. I do not know whats...