bernard_lazareff Posted March 10, 2018 Share Posted March 10, 2018 I came across the object shown in the picture. Binocular vision, but of a single image. Each eye is redirected to the central are via prisms (definitely) and a semi-transparent mirror (presumably). The plane of focus is somewhere in the gap between the bakelite body and the piece(s) of ground glass. Sure, even without stereo vision, binocular viewing is more comfortable than squinting, but, is it worth the extra complexity? Has anyone seen such a device before? Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted March 20, 2018 Share Posted March 20, 2018 I don't think semi-transparent mirrors would be used. Maybe surface-silvered ones. Looks like a binocular loupe to me. Maybe for viewing photographic slides or examining microscope slides? Who knows? Binocular microscopes are pretty common, and can be used for much longer than a monocular version without eyestrain. Link to comment Share on other sites More sharing options...
bernard_lazareff Posted March 21, 2018 Author Share Posted March 21, 2018 Maybe for viewing photographic slides or examining microscope slides? Slides: possibly, probably. Microscope slides: not enough magnification. can be used for much longer than a monocular version without eyestrain That is probably the idea of that device. Link to comment Share on other sites More sharing options...
JDMvW Posted November 15, 2018 Share Posted November 15, 2018 Also, binocular viewers for regular slides give a sort of "pseudo-stereo" effect. They were often advertised for that as well as relieving eye strain. Link to comment Share on other sites More sharing options...
glen_h Posted December 4, 2018 Share Posted December 4, 2018 I know there were devices to put in front of a camera lens to make stereo pictures in one frame, which look similar to those shown. If you made slides, you would need a way to view them. Mirrors and polarizers in front of a projector might work but this viewer might, also. -- glen Link to comment Share on other sites More sharing options...
bernard_lazareff Posted December 4, 2018 Author Share Posted December 4, 2018 Remember (see my first post) this is not for viewing stereo pictures. Both eyes are looking at the same point in the space just in front of the ground glass, as i could check with my finger. "pseudo-stereo" effect Maybe; maybe also promotional language relieving eye strain I'm more inclined to believe that stereo pictures in one frame, (...) need a way to view them. unfortunately not. By the way, when I wrote "I came across" in the original post, this item is on sale at our local charity, where I manage the photo section. And, in the same display, there is a real stereo viewing device. Link to comment Share on other sites More sharing options...
glen_h Posted December 6, 2018 Share Posted December 6, 2018 So if you put a 2x2 slide in, both eyes see the whole frame? -- glen Link to comment Share on other sites More sharing options...
paul ron Posted December 8, 2018 Share Posted December 8, 2018 slide viewer. The more you say, the less people listen. Link to comment Share on other sites More sharing options...
michael_przewrocki2 Posted March 11, 2019 Share Posted March 11, 2019 get sonice mirror-stereoscope berezin must have it. have seen an alternative which has head-strap included. will match on the sonice also. one can view the subject in 3dstereo, nothing pseudo. the same can be achieved with two vertically mounted not to big SRL. 3DStereo-previewing. or two Stereodatamaker canon-compactcams with nvp3d-primsglasses(swiss product/invention) Or using Kula3d bebe on smartphone plus using one of the cheap chinese clipon stereoviewers. two smartphones can now be twinning and opencamera remote used to get 3dstereo-images of action(read on their site) or camerada app(much simpler) didnt test yet both. Link to comment Share on other sites More sharing options...
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