Bert, Compound shutters are fairly simple. If you can tackle the job of making a camera, cleaning the shutter should be no problem. Start by unscrewing the caps on the ends of the pneumatic cylindar and flushing it out with a solvent such as alcohol.
As for focusing the lens on infinity, that is easier done on a ground glass than by specifications and calculations. Use a frame that will space a ground glass (with ground surface facing the lens) at the correct distance from the surface against which the film holder mates. This distance will be about .188 inches for 4x5 film holders, and about .219 inches for 5x7. I suggest setting the lens to focus precisely on infinity. It can then be shimmed out to focus at whatever hyperfocal distance proves best through experimenting.
Last edited by Jim Jones; 12-27-2012 at 09:15 AM. Click to view previous post history.