Do Russian cameras run B&H or KS perforated film? What's the difference? - Konvas, Kinor 35mm Motion Picture Cameras

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Do Russian cameras run B&H or KS perforated film? What's the difference?

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Written by Konvas Owner & Cinematographer Adam Frey
Monday, 10 September 2007
Konvas 2M with 17ep motor B&H perforated film versus KS perforated film goes back to the early years of film. Without getting into the politics of it all, there were two types of 35mm films made: one type, made by Bell & Howell, was adopted by most of the world for use as the negative film in 35mm cinema cameras. The other type, called "Kodak Standard" (KS for short), was mainly used in still photography and in answer prints for use in 35mm projectors (in theaters). It seems that KS perfs are less prone to tear, but don't register as well as B&H perfs, so having two different kind of perforations was a good solution. Due to their use in answer prints (aka positive prints), KS perf is sometimes called "positive perf" film. Note that 16mm film/cameras only have one kind of perforation. For some unknown reason, the members of the former Soviet Union decided to stick with KS perfs in many models of their 35mm cinema cameras - but these are only the models that have registration pins. Luckily, due to the designs of the Konvas (not having a registration pin), it will run both B&H and KS perforated films without a problem (that means that there are no needs for modifications). 35mm Kinor 75mm A Kinor 35C or 35H (in other words, the Kinor 35mm models), on the other hand, will need to be converted to run B&H perforated film (cost is usually around $500 US). For other cameras, you will probably want to ask the Cinema discussion list. If you find that you're one of the rare ones with a Konvas that actually has a registration pin, please post to the discussion list on what to do (the registration pinned Konvas are a rarity).
Last Updated ( Wednesday, 28 May 2008 )

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