Does anyone know where to find the codes on the edge of Kodak 35mm film. I have a set of negatives that just say Kodak PJM-2. No film speed or Ektar or anything.
I had no idea that there were that many film types as listed on that chart. Is it really Ektapress or was that a guess. I did go to a couple of camera stores that stocked professional film in the cooler, so I guess it is possible.
Not quite sure how a film that was on the market for about two years back in the late 1990s would have been widely used for anything unless people stored a lot it in freezers. MultiSpeed was a 400 ISO film, box marked as 640 that Kodak claimed could be exposed, on the same roll, at any ISO between 200 and 1600 IIRC. Of course it could, after a fashion, courtesy of the latitude inherent in most ISO400 films. The Ektapress films were sold as professional films not requiring refrigerated storage. IMO there was little about any of them that was anything special but I would be interested to learn what characteristics of MultiSpeed made it attractive to astrophotographers. OzJohn
I don't do astrophotography - I often heard the MultiSpeed (PJM-2 @ISO 640) was highly recommended for deep sky work, because of its spectral sensitivity curves.
There are some good essays on the web (by Jerry Lodriguss, Don Westergren, Pat Freeman) giving a lecture on print and slide films for astrophotography.