Article: A film development kit will come with all the chemicals you need to develop your photos. The kit also comes with a development tank with a spiral loaded inside so you can easily load and unload your film strips. Make sure the kit you buy is meant for black and white photography. Development kits can be purchased at photography supply stores and online. Development kits for color film will not work for black and white film since they use different chemicals. If your undeveloped film comes into contact with light, then it could cloud your negatives. Pick a laundry room or bathroom that doesn't have any windows. Cover the cracks between the door and its frame with weather stripping, masking tape, or towels. Wait a few minutes before working in your darkroom so your eyes can adjust. If you don't have a room that's lightproof, you can also purchase a film changing bag that you can put your supplies in without exposing them to light. Do not use a red light in your darkroom. Even though it's seen in movies, it could affect how your film develops. Make sure all of the lights are out before you start working on your film. Hold the film canister upside down so the flat edge faces up. Hold the edge of the bottle opener to the end of the film canister and pry the cap off. Dump the roll of film into your hand. You can also use a film canister opener to access your film. Buy them online or at specialty photography stores. The leading end of the film is slightly narrower than the rest of it. Pull out 23cm (0.791.18in) from the leading end and use a pair of scissors to cut a straight line across the film. The spiral looks like a large spool that sits inside of the development tank. Feel for the protrusions along the edge of the spiral's interior to locate where the film channel starts. Pinch the end of your film strip and pull 1015cm (3.95.9in) of it into the channel directly underneath the protrusions. Rotate the sides of the spiral to feed the rest of the film onto it. When you reach the end of the film, cut the end with a pair of scissors. Many film spools can be pushed or pulled apart to adjust for different film sizes. The development tank is a lightproof container where you'll mix the developing chemicals. Set the spiral on the bottom of the tank so the film is on the side. Place the lid on top of the tank and screw it on to secure it in place. Once the film is secure in the development tank, then you can turn the lights on again.

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Get a film development kit for black and white photography. Work in a room without visible light so your film doesn't get exposed. Open the film with a bottle opener in the darkroom. Cut the end of the film with a pair of scissors. Feed the film into the slot on the film spiral. Seal the film spiral in the development tank.