A developing tank and reels. This is where the actual developing of the film takes place after you've placed your film in the reel. A digital.
Take the roll of film you want to develop out of your camera. Depending on the kind of camera you're using, you may need to rewind the film into the cassette.
Reels The second component for developing your film is a reel, or more than likely, reels. Tanks can be purchased to accommodate multiple reels.
EDIT: To clarify, my source images are digital. Not a pure photo question, but I thought someone here might have an answer: I'm looking for a company that will .