stereoly projector

[Amich35]

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Hey, Michael here again.  Thanks for all of the good suggestions about self timers.  Now I'm curious about the Stereoly Projector system that the Leica accessory guide says came out in 1938 and used Polarized filters added to the Stereoly so that the Leitz S VIII s projector could project in 3D.  I've never heard of this and can't seem to find much about it.  Can someone explain more or point me toward sources that would?

thanks much

Michael in Flagstaff, AZ

[alan mcfall]

The Laney book, The leica collectors guide, has chapter 14 on "stereo photography with the leica".   The Lager book, vol. 3 "Accessories" has 25 pages on all things Leitz stereo.  There are others, but these would be a start.  Also, the search engine for this forum can be helpful, as members have addressed the topic.

[Amich35]

Does it matter which version of the collectors guide?  I see that the 1992 edition is much cheaper than the 2012  version.

[willeica]

10 hours ago, Amich35 said:

Does it matter which version of the collectors guide?  I see that the 1992 edition is much cheaper than the 2012  version.

Here are the pages from the last Laney guide. There are no photos of the POLAR filter in the guide.

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Have you concluded that the photographer was using the Stereoly system to create the images? 

William

AF3-0258E_PIB-NEOPAN-100-ACROSII-135-3_data-sheet.pdf

[willeica]

Here is the Stereo Projector Manual from 1939.

p17233coll8_694.pdf

 

The use of the word 'Polaroid' here is interesting.

William 

Edited August 7, 2024 by willeica

[willeica]

The ACROS data sheet on Post No 4 just 'wandered in' from something else I was doing. The one that needs to be seen is the attachment to Post No 5.

William 

[spydrxx]

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When I was in high school in the 1950s I remember we experimented with a two projector system (probably because we didn't have a stereoly to capture the shot on one frame, so needed two frames) for both creating a projected color image from black and white shots (taken with and projected with filters) as well as 3D images via polarized glass filters. At the time the concepts were "magic" to me!

[alan mcfall]

I found my clip on filter mount for the two Poloroid filters. And the special bracket to put the Steroly prism on the VIIIS projector. Haven't found the spectacles yet, but have them somewhere. Special bracket with filter attachment was" POLAR",  I thnk. Upper left in photo is the post war IMPUU for stereo projection on the Prado 150.

 

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[willeica]

4 hours ago, alan mcfall said:

I found my clip on filter mount for the two Poloroid filters. And the special bracket to put the Steroly prism on the VIIIS projector. Haven't found the spectacles yet, but have them somewhere. Special bracket with filter attachment was" POLAR",  I thnk. Upper left in photo is the post war IMPUU for stereo projection on the Prado 150.

 

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Alan, I thought you might have some of this stuff. The PDF, which I posted above, has drawings and photos of these items. 

William 

[Amich35]

William and Alan:

Thanks for all the info!  No, he wasn't using the Stereoly.  The image that I posted of the shadows in Yellowstone showed that he was using two cameras on a slide bar plus the size of the slides shows that each was from its own camera.  This is really more background for understanding the history of stereo projection.  I had thought that SVE was the first commercially available 3D projector when it came out in 1941 (see ad from The Visual Review, 1941).   I did archives research at Harvard's Baker Library in 2018 in the Polaroid collection and an internal memo from 1942 about available stereo projectors did not mention Stereoly.  Also, if you don't know, SVE sold a number of its projectors to the US government during WW2 where they used them to train soldiers to spot enemy planes in 3D!  

 

thanks again for the sources!

 

Michael

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[Anbaric]

I expect you've seen this already:

https://www.youtube.com/watch?v=flOxxxn8gvo

[Amich35]

Yes, but thanks for the reminder!  The memo that I mentioned was actually from June 1941 (not 1942) discussed this film and the differences between movie and still photo projection.

[Amich35]

It's amazing how many "through the stereo window" moments there were in this first 3D movie!  It was also sobering to hear about all of the "safety measures" put into the car knowing that my photographer's father had been killed in a car crash in 1931...