Every so often someone brings in a box of reels and says some version of “I think it’s 8mm but my brother swears it’s 16mm and honestly none of us know.” Totally normal. Nobody’s expected to know this off the top of their head — these formats mostly stopped being sold decades before most people digitizing them now were even born.
Good news: you can usually figure out what you’ve got in about five minutes with nothing more than a ruler.
The ruler trick
Pull out one strand of film and measure straight across it, edge to edge.
8mm across — you’ve got either regular 8mm or Super 8. (More on telling those apart in a second.)
16mm across — you’ve got 16mm film, which was the more “professional” home format before 8mm came along and made things cheaper and more consumer-friendly.
That single measurement rules out most of the confusion right away.
Okay, but 8mm or Super 8?
This is the one that trips people up, because they really do look almost identical at a glance. A few things to look for:
Regular 8mm (sometimes just called “Standard 8”) has sprocket holes that are noticeably larger, and there’s usually a visible gap or seam along the film from when it was originally sold as a double-wide roll that got split in half after processing. Super 8, which came along in 1965, has smaller, more delicate-looking sprocket holes, and the picture frame itself is a little bigger and more rectangular.
Honestly? Even people who’ve been doing this a while sometimes need to look twice. If you’re not sure, don’t stress about it — bring it in or send it in, and we’ll sort it out. The transfer process is the same either way, so getting it right isn’t going to change your cost.
What about that magnetic stripe running down one edge?
If you see a thin brown or reddish stripe running along one edge of the film, that’s a Super 8 sound reel — Kodak added that in 1973 so home movies could have an audio track recorded right onto the film itself. If your film has that stripe, mention it when you send it in, since audio sync is its own little process on top of the visual transfer.
Reels that are obviously not film at all
Every now and then someone hands over what they’re sure is “old film” and it’s actually a small videotape cartridge — usually 8mm video (different thing entirely from 8mm film, confusingly) or a MiniDV. If it’s a plastic cassette rather than an open reel of actual film stock, it’s video, not film, and that’s a different transfer process. If you’re not sure which box you’re holding, snap a photo and send it over before you mail anything — takes us thirty seconds to tell you what we’re looking at.
The reels themselves are also a clue
Small 3-inch reels usually hold very close to 50 feet of film, good for a few minutes of footage. Bigger 5- and 7-inch reels can hold several hundred feet. If you’ve got a mixed box of small and large reels, that’s completely normal — a lot of families ended up with reels from different years and different cameras all mixed together in the same drawer.
Bring the box in, or ship it to us, exactly as you found it. We’ll sort, measure, and identify everything on our end before anything gets scanned.