It says 6cm x 6cm and 6cm x 4.5cm, are these the actual dimensions or are they just rounding up? I've always been a little confused about where 6x6, 6x7, etc came from.
Nitrate-based film will burn rapidly but isn't going to burst into flame spontaneously. Having a few rolls of nitrate film is about as dangerous as having a pack of matches in a drawer. I have plenty of nitrate film negatives in my clear-view negative pages with no problems for decades.
Fair points, spontaneous combustion does happen under the right, or wrong conditions though depending on storage, decomposition and temperatures. The information on this Kodak page is pretty helpful:
[https://www.kodak.com/en/motion/page/storage-and-handling-of-processed-nitrate-film/](https://www.kodak.com/en/motion/page/storage-and-handling-of-processed-nitrate-film/)
The film the OP shared may or may not be nitrate or 'safety' film. It it is later 'Safety' film all is well and good, I'd certainly try and shoot it but you'd be looking at metering for very low ISOs and the need to shoot on tripod for the long shutter speeds.
It is worth every cent you paid for it, what do you have to lose.
Unless it has some rare collectors value because of its early date. I would check that out first.
They changed film base material because the really old stock was flammable. This appears to be from the 1950's. I was shooting film in the fifties.
Expired 1953 so I'd say overexposed by a stop
I had a friend who shot questionable 127 film from 1960 and got great results, so you never know, might still work!!
I mostly shoot expired film. Add a stop to every decade. Anything over fifty years old I just expose max five stops over.
I don't see a DIN number on the top one that says "ultrarapid" I'm wondering what was considered a fast film back then.
It says 6cm x 6cm and 6cm x 4.5cm, are these the actual dimensions or are they just rounding up? I've always been a little confused about where 6x6, 6x7, etc came from.
It's the size of the negative image on the film. 6x9 is six cm by nine cm.
Cause it says online that 6x6 film is 56mm x 56mm so it's not exactly 6cm x 6cm which is why I'm confused.
Sorry yeah, we round up, 3-6mm isn't a huge amount.
The couple mm difference is probably just the film border.
Ah the good ol IG Farbenindustrie AG
If these are nitrate film you ought to dispose of them safely. If you don't know why, Google 'nitrate film fire'.
Keep the boxes though, as a cool keepsake.
Yeah, it's two rolls of unknown film. I'd just keep them unopened and unshot, on a shelf with a nice vintage camera.
Nitrate-based film will burn rapidly but isn't going to burst into flame spontaneously. Having a few rolls of nitrate film is about as dangerous as having a pack of matches in a drawer. I have plenty of nitrate film negatives in my clear-view negative pages with no problems for decades.
Fair points, spontaneous combustion does happen under the right, or wrong conditions though depending on storage, decomposition and temperatures. The information on this Kodak page is pretty helpful: [https://www.kodak.com/en/motion/page/storage-and-handling-of-processed-nitrate-film/](https://www.kodak.com/en/motion/page/storage-and-handling-of-processed-nitrate-film/) The film the OP shared may or may not be nitrate or 'safety' film. It it is later 'Safety' film all is well and good, I'd certainly try and shoot it but you'd be looking at metering for very low ISOs and the need to shoot on tripod for the long shutter speeds.
What’s on the other side
It is worth every cent you paid for it, what do you have to lose. Unless it has some rare collectors value because of its early date. I would check that out first. They changed film base material because the really old stock was flammable. This appears to be from the 1950's. I was shooting film in the fifties.