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This topic comprises 2 pages: 1 2
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Author
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Topic: 35mm projector questions
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Stephen Furley
Film God
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Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 11-04-2013 11:09 AM
How many mag stripes does it have? Four was normal for 35 mm, but one and three were also used, but not common. Does it also have a narrow optical stripe next to one of the mag stripes? For a film of this date I would expect that it does.
CS perfs are easy to recognise; they are almost square, while normal KS ones are rectangular. compare it with some normal 35 mm film, either motion picture, or even some still film. If you're not sure then post a scan or a photograph of a few perfs and we can tell you for sure.
I don't know the Zenit, but I assume that it cannot run magnetic sound; very few portable machines could; I only ever saw one. If it cannot then it may, or may not, have sprockets with teeth which can be used with CS perfs; I think it is more likely that it does not, but I can't be sure without seeing them. If they are not suitable then they would damage the print if you tried to run it.
The other possible problem is that anything which the print comes into contact with, or close to, including projector parts and spools, splicers etc., must not be magnetised. All steel parts should be de-magnetised before running a mag print.
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Leo Enticknap
Film God
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Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 11-04-2013 11:54 AM
Assuming that the perforations are not Fox holes, could this be a magoptical print? Annyoingly I can't find any photo of one on Google Images, and so can't point you to an image. If so, it'll run on your machine and you'll hear some audio (albeit poor quality and mono), but oxide is likely to shed like mad, and keeping the film path clean will be a never-ending job.
Also, if the image on your print has not faded to a reddish/pinkish hue (e.g. if the blacks of outer space still look really black, and not dark pink), you have a dye-transfer, or imbibition (IB) print made using the Technicolor process. These are extremely rare and valuable, precisely because they don't fade, and are real collectors' items.
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William Wells
Film Handler
Posts: 6
From: Nipomo, California, USA
Registered: Oct 2013
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posted 11-04-2013 12:08 PM
OK, so I took some pictures of the print and have some pictures saved of the projector, but when I try to post them it says I can't link to outside images? How do I post images here? In the meantime, here's the Photobucket album: http://s1238.photobucket.com/user/ww123-2008/library/ZENIT%20Projector
In any case, it does appear to be mono optical/mag 4 track. It also has the CS perfs, as I figured. I asked the seller of the projector if it would damage the mag-portion of the print playing it back on the projector and apparently it is safe, I just wanted an unbiased second opinion.
I'm still at a loss as to whether the projector will play CS perfs. If it has the KS sprockets, is there any way to change it over to CS (without an incredible amount of time/effort/money)?
As far as VS, it is not present on this film (tested with my nose and AD strips - passed on both counts). Would Filmrenew or Filmguard help the mag strips not decompose/flake as they run through the film path, or is it pretty much a lost cause keeping them from flaking?
Thanks so much for all the answers so far. I really appreciate the help!
Edit: Also, I forgot to mention - not a Tech print. The Discovery is floating in the deep "crimson" of space...
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Leo Enticknap
Film God
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Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 11-04-2013 02:13 PM
Filmguard would definitely help keep oxide shedding under control, in my experience. I also noticed from your pic of the leader that there is a bit of shrinkage-caused warping. Doesn't look too bad from what I can see, but FG also helps reduce the picture wobble and focus issues that this can cause. In fact, for projecting older acetate prints, FG is an all round good idea.
If you can find some Fox hole sprockets for your projector (you'd need a complete set - feed, intermittent and pay-out), and if swapping them out doesn't necessitate major surgery to the projector, then that's all you should need to do (though slight shutter re-timing might be needed afterwards).
How possible this is depends on if you can get hold of the sprockets in the first place (were they ever made for this model?), and how difficult they are to fit. That depends on the design of the projector. For example, on a Cinemeccanica Vic 5, one Allen key and 20 minutes or so is all you need to swap a complete set of sprockets. On an FP-20, in constrast, simply replacing the intermittent sprocket requires major disassembly and, the one time I had to do it, it took me 2-3 hours. I've never seen or worked with your model, and so couldn't say.
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William Wells
Film Handler
Posts: 6
From: Nipomo, California, USA
Registered: Oct 2013
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posted 11-04-2013 02:31 PM
Here's some more info on the projector from the original seller email: "Not sure if I mentioned this but it will include a visible red reader, mono sound. We’ll also include a few lenses."
Is this the right company? http://en.wikipedia.org/wiki/Konvas
As far as the sprockets, I'll look into them and see if they can be replaced if they wind up not being CS sprockets. As far as the leader, both head and tail are horrible Fiesta leader (as it's called over on 16mmfilmtalk), so they will be replaced. Any sources for new polyester leader? I'll also be applying some Filmrenew, followed by some Filmguard just to be safe. Hopefully those in combination will keep the oxide shedding under control.
As far as running the prints on a mag projector, I'll be going up to Portland in mid-December - if the offer still stands I'd love to take you up on it!
Edit: I haven't received the projector yet (it's with UPS right now - I should have it by sometime mid-week) but wanted to get all the details ironed out before it got here...
2nd Edit: Just found out that the Zenit projector is basically a Zeiss Jena TK35 clone (which makes sense, considering the Russians got a bunch of the Zeiss patents after WWII). Anyway, I thought I'd add that tip to see if it helps anybody.
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Marin Zorica
Jedi Master Film Handler
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Posts: 671
From: Biograd na Moru, Croatia
Registered: May 2003
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posted 11-04-2013 05:03 PM
That is russian made MOSKINAP projector, i don't think they did made it under name ZENIT, but maybe depending where did they export. I had some sets converted to red cyan reader for analog sound, because they were common in schools and similar institutions here, and hence some were used in small open air venues. But, don't screen 35mm 2001 on it, it will damage they perforation, and probably since it's all normal metal it could damage magnetic track on film, which, in you're case it is so rare to find 2001 on 35mm (i would kill to get print like that ).
Back to projector, yes it's Zeiss TK35 clone to say (even some doubt that russian variant is older???). But it was very poor made, soundhead was awfull and so on....i think that is probably from 1960's. Check does it have aperture plates, some older ne including mine at warehouse has only 1:1,37 fixed mask on it.
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