Color: Color FilmSX-70 cameras work a little differently and that's why they have their own type of film. SX-70 film has a lower ASA, which means it needs a lot more light to get a good photograph. It's also the reason behind all those dreamy colors and textures, which artists adore. All folding-type cameras (except the 680/690 SLR models) use SX-70 film.