Substitute transparent film for paper to get oversize negatives for maximum versatility when contact printing pinhole photographs. Ortho-litho film is roughly the same speed as regular photo paper, so the exposure time of your camera and the range it will function within are about the same.
Instructions
1. Set up your darkroom chemistry as follows: Developer: Dektol mixed 1:6 or weaker (up to 1:10 is OK). Stop: Use a water-filled tray. Fixer: Rapid fix or equivalent will do.
2. Place the film in the pinhole camera under normal safelight conditions in the darkroom.
3. Make an exposure with the camera and return to the darkroom for processing (see "Take a Pinhole Photograph," under Related eHows).
4. Remove the film and process it for 2 minutes in the developer, 1 minute in the stop and 4 minutes in the fix. The film will appear milky when removed from the camera but will clear, and its transparency will become evident after 30 seconds in the developer.
5. Wash the film for 5 minutes under running water after fixing.
6. Hang to dry.
