Paterson Film Processing Kit for 35mm & 120 FilmPaterson Film Processing Kit for 35mm and 120 Film The kit contains everything required to process up to two 35mm films or one 120 roll film at a time. Ideal for those photographers who wish to capture their images on film and then either have them printed commercially or make their prints digitally after scanning their negatives. It can also form the basis of a complete darkroom, where more specialised equipment to cope with larger prints is required