Do you have a flash meter? If you do then you can determine the exposure time for your pinhole lens by metering your setup then decide how many stops different your pinhole is from your reading. For each stop off you will need to double your exposure.
Say your meter says to use f 22 but your pinhole is an f 180, this is a 6 stop difference. to get the right exposure you would need to set your flash off 64 times. If this is too much for your old Brown line then try moving your lights closer, using faster film, or making a larger pinhole. I use a handheld flash with one of my camera's. With ISO 400 film I can shoot from 20 inches away with my f 45 lens. Chris Peregoy | http://www.gl.umbc.edu/~peregoy | http://imda.umbc.edu/
