Cs41 "Color Simplified" Powder Kit for Color Processing at Home (C-41 Chemistry) Processing ANY color negative film at home is easy with these 2 simple chemistry mixtures. No special equipment needed! Processing your own color film doesn't have to be complicated or expensive! These two bath processing kits can be used at a variety of temperatures with the same equipment you already process your black and white film with at home. No darkroom or automated processor required! If you already process your own black and white film, there is no reason you can't process your own color negative film at home!! With this simplified 2 bath process, you can have beautifully developed and fixed color negatives, ready to scan!. All you need is water, a thermometer and any simple developing tank!