Double-X 100' rolls Special Order??

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Originally Posted by AgX

There are several perforations used in the 35mm cine world. And two types of holes. But the difference is not due to the speed of film as for instance the film speed is basically the same in the camera and in the projector. The reason for one part are other technical factors and, probably more important, to many people gathering at too many conferences...

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Ah I always thought the rounded sprocket pattern was a necessity because of the rate of speed the film passes though the camera/projector, so that they engage the teeth properly without tearing.

Kodak has an amazing automated film factory that can make huge quantities of any film really fast. Problem is that it's got a big fixed cost, and they aren't making huge quantities of film anymore. There's a big startup cost to make a run of a particular emulsion. Plus-X sold so slowly that they couldn't sell a minimum sized run before it expired. So it got discontinued.

This same factory also makes the Eastman movie films. Which are often manufactured to order. But shooting up one movie uses enough film that the order is a sensible sized production run!

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Originally Posted by RidingWaves

"Turns out that Plus-X is gone because the one particular machine that coated it broke, and it couldn't be repaired any more, same as Efke"

I call BS on this. Kodak shifted all of its film making to one plant in 2002 that could make all of the films under one roof, just changing the emulsions for the master rolls to be cut. One Kodak machine 'wearing out' for Plus-X? Ha.
Perhaps you got the previous version mixed up, that version of Plus-X pre 2002 had the distinctive blueish film base.

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Was that base more a green/blue?

I thought I wasn't fixing long enough...


~Stone

Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk

Panatomic X also has a greenish blue look when it is unprocessed. There are a few wacky ones out there, there is one that is bright red, another that is yellow, and one that I saw on ebay with a white base (looks almost like plain leader but was labeled as photographic film!)

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Originally Posted by Newt_on_Swings

Ah I always thought the rounded sprocket pattern was a necessity because of the rate of speed the film passes though the camera/projector, so that they engage the teeth properly without tearing.

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Just a supposition, but I figure the rounded edge shape helps keep the film centered on the sprocket better.

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Originally Posted by Newt_on_Swings

Panatomic X also has a greenish blue look when it is unprocessed. There are a few wacky ones out there, there is one that is bright red, another that is yellow, and one that I saw on ebay with a white base (looks almost like plain leader but was labeled as photographic film!)

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Now why can't they do a Panatomic-X run? That would be worth much more... Better than that Tmax crap :)


~Stone

Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk

I received a phone call from Vancouver Kodak and they will sell a 400' roll of 5222 for $170 1-800-621-3456.

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Originally Posted by lxdude

Just a supposition, but I figure the rounded edge shape helps keep the film centered on the sprocket better.

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This would not explain why in projection a different form of hole is used.

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Originally Posted by dances_w_clouds

I received a phone call from Vancouver Kodak and they will sell a 400' roll of 5222 for $170 1-800-621-3456.

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That is a much better price. 4 people can easily pay ~$43, plus a bit more for shipping. I'd be willing to pitch in for that.

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Originally Posted by lxdude

Just a supposition, but I figure the rounded edge shape helps keep the film centered on the sprocket better.

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Sharp internal corners are where stresses get focused and tears begin. Rounded sprocket holes spread the load more uniformly and reduce the probability of tearing, especially at higher frame rates.