While you might be uninterested by the idea of text traveling through cables as signals, you should take interest in the fact that film and negatives do precisely the same thing. If it’s okay with you, I’d like to provide an overly simplistic definition of film scanning. Film scanning is nothing more than the conversion of highly processed animal skin (gelatin) and silver halide crystals into electronic signals. The job of a professional film scanner is to create electronic signals that carry as much of the information originally housed on your film as possible. Getting good information out of your film is the purpose of this article. Let’s make some electronic signals!
More information – and video demonstrations at How to Scan Film and Negatives like a Pro