These cartridges use double 8mm. Inside the cartridge is double perf 16mm film with twice as many perforations as usual. You shoot 25 feet on one side and then flip it over and shoot the second half on the same strip of film. After developing, the lab splits the 16mm film down the middle and joins the two ends to make 50 feet of regular 8mm. Maybe you are thinking of Single-8mm which is a japanese format of regular 8mm in a cartridge.
> On Jun 24, 2023, at 2:22 AM, Myron Ort <z...@sonic.net> wrote: > > I am curious about these reg. 8mm film cartridges. Do they shoot double 8mm > or do they shoot single reg. 8mm, eg. already split. If double do you then > flip over the cartridge to shoot the other side and the lab splits it after > processing? The link here suggests that it is loaded with “double 8mm” but I > recall cameras that did shoot single reg. 8mm. Not sure what the cartridges > had but they appear to be too narrow to shoot double 8mm which is the same > width, of course, as 16mm. > -- Frameworks mailing list Frameworks@film-gallery.org https://mail.film-gallery.org/mailman/listinfo/frameworks_film-gallery.org
