For home movies, at least, 8mm and Super 8mm was a very common format. An 8mm frame has a lot less resolution than 35mm. Kodachrome and Ektachrome film have ver

For home movies, at least, 8mm and Super 8mm was a very common format. An 8mm frame has a lot less resolution than 35mm. Kodachrome and Ektachrome film have very identifiable artifacts, too.