Advance Photo System
Advanced Photo System is a discontinued film format for still photography first produced in 1996. It was marketed by Eastman Kodak under the brand name Advantix, by FujiFilm under the name Nexia, by Agfa under the name Futura and by Konica as Centuria. How did it work? In short?
One of my earliest camera is an Nikon Nuvis APS camera that just worked like any other analog camera. Just put a APS film cassette into the camera. Make photos the way you like. Then bring your cassette to a photo print shop as you didn't need to have a dark room yourself. I usually asked only for a contact sheet to see what I really wanted. You come back the next day to mark the photo numbers you want to have been printed. That's how I really started learning photographing myself.
And, it is just like an artist painter, even a photographer creates his or her own style that develops as an signature in all your photos.