The film scanner will scan an already developed negative into a digital file. You can then process the file in a photoshop type program. The film scanning process is time consuming and many people do not like it. I would recommend at least for a while that your take your C41 film to CostCo or a similar store and have them process the film and make a CD for you. You can then fiddle around with those files in photoshop and after a while if your still inclined you can shop for a film scanner. My own preference is to shoot E-6 and have a CD made at a pro lab. It's kind of expensive but I do not have to use my epson scanner which suits me very well. I do not enjoy film scanning.