7232 16mm film info

[The_kodak_kid]

So I have several 50ft reels of Kodaks 7232 film, which expired sometime around 1952/1953... I shot some last night on my Bolex. I had the fstop set for compete darkness even though my room was fairly bright. Developed it as a negative in d-19 and fixer, and could barely see any images.

Anyone have any info on this film 7232 as I can't find anything anywhere, or if I can develop it as a negative in d-19 and fixer?

[Phil_F_NM]

Are you sure its not 1231? There is no data sheet for 7232. If it is 1232, then it is Super-XX on a nitrate base not an acetate base and the film needs to be handled carefully as over time it can degrade and spontaneously catch fire. It could also be 7222 the venerable XX which has been around since the early 1950s. The 50ft length could possibly denote its difference from 31 to 32 or it could be an internegative film possibly. Regardless, Super-XX was 100ASA if I'm doing my research correctly. If 7222 XX it was 200ASA. Subtract one stop sensitivity per decade since it became expired. Develop for the adjusted expired sensitivity. You may want to find a darkroom cookbook and learn to change your beer to account for fog.

Phil Forrest

[Phil_F_NM]

In my above post the first number should be 1232, not 1231. I mis-typed and can no longer edit the post.
Phil Forrest

[The_kodak_kid]

Are you sure its not 1231? There is no data sheet for 7232. If it is 1232, then it is Super-XX on a nitrate base not an acetate base and the film needs to be handled carefully as over time it can degrade and spontaneously catch fire. It could also be 7222 the venerable XX which has been around since the early 1950s. The 50ft length could possibly denote its difference from 31 to 32 or it could be an internegative film possibly. Regardless, Super-XX was 100ASA if I'm doing my research correctly. If 7222 XX it was 200ASA. Subtract one stop sensitivity per decade since it became expired. Develop for the adjusted expired sensitivity. You may want to find a darkroom cookbook and learn to change your beer to account for fog.

Phil Forrest

Yes, it says 7232... and it does say super xx. The weird thing is that I developed it and there were faint images, but they seemed to be too dark. Almost as if the remjet didn’t get removed (?) hmmm

I just read the box and it says “film has an antiabrasion backing- for best results in splicing, the back should be scraped in addition to scraping of emulsion side.” It also mentions something about using cement when the above is not feasible...

[The_kodak_kid]

In my above post the first number should be 1232, not 1231. I mis-typed and can no longer edit the post.
Phil Forrest

Any recommendations on good cook books? Something for the layman

[Phil_F_NM]

Any recommendations on good cook books? Something for the layman

Yes, The Darkroom Cookbook. By Steven Anchell. You can learn how to limit base fog from years of expiration.

Regarding the film in your previous post, there is no remjet on it. Otherwise you'd have had carbon black everywhere. To remove remjet you need a borax solution and a lot time for manual removal.

Use Google. It will help you research all this.

Phil Forrest