Red film base? And idea what this is?

Discussion in 'Film and Processing' started by zack_zoll, Apr 12, 2011.

  1. Anybody want to have a guess at what this is? All I can think of is that maybe it's dummy film, to practice loading and unloading. And other ideas?
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  2. Official Government red tape?
     
  3. I've seen counterfeit rolls of film. Usually these are name brand boxes and cassettes with a small piece of leader sticking out. I've never seen counterfeit off-brand film.
     
  4. Duplicating microfilm. Kodak 2468 is similarly red.
     
  5. May be something like this “KODAK PROFESSIONAL PORTRA 100T Film / Tungsten"
     
  6. I would tend to think that it is some type of special-purpose black and white film. I would do an exposure test from ISO 1 to 100, and develop in a standard developer, just to see what it is.
     
  7. It is transparent, hence no emulsion. Unless just the leader is transparent, which seems unlikely. I don't think Kalt ever sold film under their brand, so I'd say it's a dummy roll, maybe for promotions or something.
     
  8. KALT makes reloadable 35mm Cartridges. I have some microfilm it is red but not the base the emulsion. I am pretty sure that back in the 70s we had some of that stuff to teach people how to load cameras and reels. I say it is practice film.
     
  9. Thanks for the replies guys. What I'm going to do is pull the film out a little further and see if there's any emulsion in there. If it is, I'll assume it's microfilm and we had to give up a few frames to find out. If I keep pulling and never see emulsion, than I can only assume it's a dummy roll.
    Or at least it will be, by that point :)
    This roll (and several others) were all from a customer who found a box of film in a late family member's house. I assume most of them are blank (leaders still out, no crimp on the leader from being loaded), but I won't know until I develop at least some of them.
     
  10. email Kodak tech support? I think he's still alive ....
     
  11. The 2468 is quite transparent, not very opaque. It's not a conventional silver emulsion, EI something under 1, reversal when processed normally in D-76.
     
  12. I bought some Kodak Duplicating film from Freestyle many years ago that had a red base.
     
  13. Kodak made a "direct positive" motion picture film available c 1980. It had exactly the same appearing red, transparent film.
    When I asked a Kodak TSR (technical service rep) how this emulsion worked (it would make either a negative or a positive image depending on what was printed on it). His answer was "it's magic". Kodak speak, for a proprietary process.
     
  14. Hah hah! Thanks Steve :)
    I pulled out the leader another few inches, and saw no change in transparency. So I called the customer and told her what you guys told me: that it was either duplicating film, or nothing. Being that all the other bulkloaded rolls were blank, we just gave up on trying to develop this one.
    Thanks for the help guys!
     

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