[Schroder]

I noticed a photo caption in a documentary I was watching and looked up the photographer. There was a business in Snohomish around 1906 called Blosser Scenic Art Company and they did steroscopic photos in the area. Some of these are preserved in the Library of Congress.

Glacier Basin and Cadet Peak

A web search on J. A. Blosser shows other photos of his scattered on many websites and here's more on the Library of Congress

[Tom]

Interesting, is there a way to view them in stereo?

[Schroder]

[Dick B]

[IanB]

[cdestroyer]

stereoscope probably more commonly called stereo opticon. I have not seen one in many years. after some research I realize I have been calling an object incorrectly...an opticon is more like a projector instead of a handheld device....my bad......

[Kim Brown]

I purchased a book from Mtn Loop Coffee & Books several years ago - written by j. Harlen Bretz before he knew the water source of the Bretz Floods. In it was a set of maps 8 stereoscopic cards - the whole thing - book, maps, stereoscope cards - was in pristine condition. Stereoscopes can be found on line; I never bought one for the book, but looked at the photos using an old stereoscope a neighbor had. Stereoscope cards were popular then; for maps, books, souvenirs. Looking at the photos through a stereoscope is like looking at the old ViewMaster reels; 3D viewing.

[Bernardo]

I turned my phone horizontal and expanded the images to fill the screen. I then tried to stare at the two images through my left and right eyes separately and after a few moments the three men in the foreground stood out. It helped to hold the phone at half arm’s length. Once you feel it snap into 3-D don’t let go. Move your head a bit. Mesmerizing and very cool. Thanks for posting.

[mike]

[Dick B]

[Bowregard]

My FIL has a stereoscope and a number of cards to view with it that have the same format. He was not around in 1906 so I assume it was either an antique he purchased or was passed down in the family. Thanks for posting.

[Dick B]

Here is a suggestion for those that like to take pictures and can get access to a stereo viewer. On your next hike take a picture of a scene, then move the camera a couple of inches to the right and take another. You will have created a stereo pair. Get the 2 pictures printed, then view thru the viewer, left pic on the left right on the right. The result should be in 3D. You could also to try to view without a viewer. There are many beautiful pictures posted by folks on this forum. I think you might enjoy your pictures even more if you could view in 3 dimension. I wish I could show proof that this might work, but with mono vision it is not possible. Let us know the results.

[Tom]

Is the effect similar to 3D photos you can create on FB? Here is a sample: https://www.facebook.com/help/iphone-app/414295416095269 Modern cell phones take multiple images for every shot, so the effect is probably better if it uses that information rather than generate from a still: https://blog.google/products/photos/new-cinematic-photos-and-more-ways-relive-your-memories/

[catsp]

Ah yes, it brings back memories of the old Meta Quest 2. Anyone remember that old thing? Nice little video explanation and helpful hints here: The science behind the Magic Eye craze of the 1990s. BTW, little tip for anyone having trouble free eyeing it: Try adjusting the size of the pic. If you're trying it on your desktop, for example, the pic might be too big for your eye spacing.

[Dick B]

Professionally shot aerial photos came from a camera that made a 9x9 contact print. in order to view it with the free eye method, or with a pocket stereo, the portions of the 2 photos that were to be seen in stereo could only be as far apart as your eyes. Therefore, one of the photos had to be curled up and moved around until the co-imagery superimposed on each other. The desk top stereos with the mirrors, allowed a much wider separation of the stereo pairs. As I remember I could lay a stereo pair under the scope and it would pick up the stereo imagery for the entire portions of the 2 photos that were on both prints. It's been a long time since I viewed a stereo pair without a scope, but here is what I think I remember. What I would do is stare off in the distance, so my eyes were aligned in a parallel mode. Then, at arm's length, I would slowly lift the photos into my line of vision, while concentrating on still staring straight ahead. In a little while I was able to view the left photo with my left eye and right with my right. I would then see the 2 images as a single miraged image. The trick then was to be able to bring the images into focus as it was only at arm's length. Then the photos had to be moved slightly until the 2 images were perfectly aligned. When this was accomplished, I had a 3D image.