How Do I Roll 35mm Film Back Into the Canister?

Rolling 35mm photographic film back into canisters is usually done in bulk, as a cost-cutting measure. Film typically comes in 100-foot lengths and can be easily cut to accommodate 12, 24 or 36 exposures.

Things You'll Need

• Empty film canister
• Bottle/canister opener
• Adhesive tape
• Scissors
• Changing bag or dark room

Instructions

1. Open the film canister. Use a bottle or canister opener to pop off the lid.

2. In total darkness (using a photographic changing bag or in a dark room), tape the end of the bulk film to the spool. The emulsion (the less smooth side) should be facing down.

3. Cut the desired length of film. If using a changing bag, the length can be estimated using your arms. In a darkroom, pins can be nailed on a wall beforehand as length guides to produce 12, 24 or 36 exposures.

4. Reinsert spool with the attached film into the canister. Wind the film onto the spool in a clockwise direction. Leave at least 3 inches of film out. Put the lid back and use your thumb and fingers to press hard until it is shut tight.

5. 

   Photo shows the film leader of a 35mm color film.

   Take out the reloaded film in open light. Cut off the end to form the film leader. The smooth curve should resemble the shape of that of a factory-made film, so that it can be loaded properly into a camera.

Tips & Warnings

• Practice doing steps 2 to 4 in open light. Sacrifice a short length of film before doing it in total darkness--in order to get it right. Reusable plastic or metal film cassettes and bulk film daylight loaders are available for commercial users.

• Total darkness is a must to avoid "fogs" (light leaks), or total exposure of the film. Having a clean reloading work space is also important, as dust and particles can scratch and damage film.

Resources

• Ultra Fine: Bulk Film Loading Supplies