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> 35mm Film Perforation Dimensions. |
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#1
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35mm Film Perforation Dimensions.
I am pondering using bulk film to possibly save a couple of bob.
Recently been looking at advertisements for 35mm end of reel offcuts, left over from the motion picture industry. Whilst looking up any available information I bumbled onto a couple of references to the sprocket dimensions, and sprocket spacings. Some people say beware as the dimensions for motion picture film are different to those of 35m film used for still cameras, such as we use. Does any one have any experience with this difference? Possibly the difference may be so small that it is negligible and causes no problem with still cameras. Any information folks? Cheers.
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#2
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This article on Wikipedia gives some information on perforations.
https://en.wikipedia.org/wiki/Film_perforations It states that: The KS1870 perforation, or KS (Kodak Standard) perforation with a pitch of 0.1870", is the modern standard for release prints as well as for 135 still camera film. |
#3
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Collas Thank you for the information.
I actually read that page before posting here. I think I must be going down with oldtimers disease. Cheers again Collas.
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It will all be over by Christmas. |
#4
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Well, I don't think there would be a market amongst photographers for these 'off cuts', if the film didn't fit their 35mm cameras...?
And out of interest, as I'm very happy with using HP5+, what is the approximate saving, when buying these lengths? Terry S |
#5
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Nat what's the source and what's the range of films? I'd be amazed if there is any Ilford B&W as it has to be donkey's years since any Ilford B&W film was used by the film industry surely?
Last B&W film that was "mainstream" stuff that I remember was "Raging Bull" and I presume that was Kodak B&W Thanks Mike |
#6
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The source is a seller on ebay You just need to put "bulk film" in the search box.
Their i.d. is eatonhelan They have Kodak roll ends. Black and white and colour negative. The couple of colour ones I looked at had ramjet backing. That needs stripping in a chemical bath before developing. Apparently if you put it in a mini lab it screws up the filters and chemicals and anyone else's film that happens to be in there at the time. So definitely a diy develop needed. I think that making up the stripping bath etc. may put a lot of people off the idea of using it. Have a look at their site, it might be of interest. Cheers. I thought I had better add a note that I am in no way connected with the seller etc. etc..
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#7
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Thanks Nat
Mike |
#8
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This recipe for remjet removal looks easy and is also much the same as other suggestions I have seen. It's done at only 3 degrees below the usual C41 processes; so the emulsion isn't likely to be messed about by just following on.
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#9
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A while back I listened to a podcast interview with one of the founders of Cinestill film. He described the process of removing the remjet and it did not seem like something any home user would ever want to do. Nat, if you want to shoot cine film, have you considered just buying some Cinestill? The remjet has already been removed so you don't have to fuss around with it. A friend shoots this stuff and his results are remarkable. Really beautiful and unique colours.
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Regards, Svend |
#10
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Quote:
Last mainstream B&W film, well mainly B&W, was Schindlers list 1993 or so. Raging Bull was 1980. Bill |
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