3378 is basically the same as 5278 with an estar base... I have used it in Bolexes and CP-16s with no problems for years. The Bolex does have enough torque to damage things if it jams, but it's not as if jamming is a frequent problem. It's higher contrast than the hi-con stock which makes it great for titling and mattes if you can live with tape splicing it.
For actual sound recording the estar base is a huge win because it does not expand and contract as much with processing and drying the way acetate does, so the acetate version only stuck around because it was cheaper. For a long time I ran Agfa ST-8 through the sound cameras, but that has become difficult to find. That's also a polyester base. I would not worry too much about running the new polyester film stocks in a well-maintained Bolex. --scott _______________________________________________ FrameWorks mailing list [email protected] https://mailman-mail5.webfaction.com/listinfo/frameworks
