F2 pin registered cameras
		Nikon did not make any pin registered F2's, but a number of specialised photo companies did. These cameras have modified bodies and extra bumps on their backs to push pins into the body and hold the film perfectly still for animation/multiple exposure shots.
		This prototype may be the father of all the pin registered F2s. The back is machined out of a piece of solid aluminium. The pins are activated by a standard cable release at the front. I don't know who made it, but it's unique.
					R I Harding, England
					Double M Industries, USA
		Slide Magic, USA
					This is the poor mans version of a pin registered F2. The user has to press the button under the leather path to push the pin down.
		Oxberry, USA