I broke/cut the back off of a polaroid portrait land camera that i got for nothing,added a wooden front box and added a 58mm lens ring,i can screw on any filter that i want and i use the lense cap for the shutter :)i made the pinhole in brass shim stock,btw the aperture is f125.
Harry < <A HREF="http://www.figurefoto.com/"><Figurefoto.com</A>