8mm Forum: Side-by-side 3D presentation

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Topic: Side-by-side 3D presentation

Martin Jones
Phenomenal Film Handler

Posts: 1269
From: Thetford , Norfolk,England
Registered: May 2008

posted February 07, 2014 05:24 AM

Has anyone any information on the lenses used for projection of 3D films printed in the 35mm “Side by side” anamorphic format which replaced the “two strip” original method.
Many two-strip films were later printed in this format so only one projector was needed, and some new productions were filmed using this format and a single camera.
Any information…. pictures, diagrams, textual, patents etc would be welcome. Use my PM or email addresses.
Thank you in advance.
Martin

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Retired TV Service Engineer
Ongoing interest in Telecine....

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Oemer Yalinkilic
Jedi Master Film Handler

Posts: 547
From: Berlin, Germany
Registered: Jul 2003

posted February 07, 2014 08:23 AM

Check this webside:
http://www.3dfilmarchive.com/

Bob Furmanek is the best 3D expert I knew, you can ask him your questions. He is also a member on the 35mm forum.

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted February 07, 2014 10:20 AM

When I ran "Jaws 3D" we had a visit from a technician many weeks in advance. This was to check on our Westar projector, and also measure the exact distance of the throw.

The film had a full square frame with the left and right images above each other.

The lens assembly which was ultimately received had a prism inside it which "sent" the two images from the lens and ultimately presented both images on top of one another.

This was why each assembly had to be specially prepared for each cinema.

The film on the screen had a CinemScope shape but was actually a "flat" image.

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Maurice

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Martin Jones
Phenomenal Film Handler

Posts: 1269
From: Thetford , Norfolk,England
Registered: May 2008

posted February 07, 2014 10:41 AM

Thank you, Oemer and Maurice.
The website is interesting and I have contacted it. No replies yet.
Maurice, thanks to you I have R.M.Hayes' book which contains lots of information on projection attachments for "Under and over" as you describe, but there was also a "side by side" format with horizontally compressed images which needed Anamorphic expansion as well as convergence facilities. That's what I am looking for; it's pretty elusive!
Martin

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Retired TV Service Engineer
Ongoing interest in Telecine....

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted February 07, 2014 11:55 AM

On the first run of "Jaws 3D" the manager was receiving complaints from patrons that the film did not have any 3D effect, only after he had telephoned the circuit's engineer did we find out we had laced two perfs away from their correct gate position.

There was no indication on how to insert in the gate neither on the film, nor any paperwork with the adapter. For the second run all was well, although we could have done with a lot more light.

Obviously, the side-by-side 3D film as mentioned by Martin would not give lacing problems.

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Maurice

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Joe Taffis
Phenomenal Film Handler

Posts: 1592
From: United States
Registered: Jun 2003

posted February 07, 2014 06:37 PM

I remember seeing both JAWS 3-D and FRIDAY THE 13TH 3-D in the theater in the early 1980s. I was awe struck by the 3-D effects of both pictures. For "Friday", the theater also used a silver screen just for that feature. It was great 3-D viewing, even though the movies weren't the best [Smile]

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Joe Taffis

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David Ollerearnshaw
Phenomenal Film Handler

Posts: 1373
From: Penistone Sheffield UK
Registered: Oct 2012

posted February 08, 2014 07:33 AM

'Jaws 3D' I saw in London, I was very impressed by some of the 3D scenes. One that springs time mind was a scene with a press briefing outside. It looked as if you could walk down to the screen, step over the masking and join them. The special effects in 3D were poor though.

I also saw 'Comin At Ya' made just for 3D effects.

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I love the smell of film in the morning.

http://www.thereelimage.co.uk/

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