Hey World! My first upload. Used the specifications from Nikon, haven't had a chance to print so I don't know how much tweaking still needs to be done. The design is an f/16 Pinhole Lens; to be used with 400 ISO and 1/500 sec shutter speed. (Let me know if it's close or needs adjustment, I used calculations from mrpinhole.) Update 2014.03.16 -Printed today on a Replicator 2 with raft and no supports. The inside of the lens is very interesting looking as the filament didn't overlap as I had hoped. Seems to fit my camera great none the less once I cleaned up the mounting sprocket. Will reprint with supports and try cleaning that up; if I am still not having luck, I will have to increase the length of the front so that the angle is increased.Download and print with or without support! Sourced the design from the technical specifications from Nikon for the F-mount. Pinhole Calculations done on mrpinhole.com