Here are some links to some stereo pairs I shot of some of the Japanese made-for-export classic refractors I've restored. To view these in 3D, click on the link. Then sit back from the screen, relax, and slowly cross your eyes, merging the two images. A third image will form between the two. Ever so slightly tilt your head one way or the other to aid the alignment, if needed. When the images are correctly merged, you'll see the image in true 3D. Don't rush it, don't get frustrated, sometimes it takes time to get the knack. The old advice of "staring through the image" is bunk, since physiologically your eyes have to cross anyway to see the effect, so that's why I just advise people to cross their eyes consciously. Left-to-right: Manon Shrine 60mm, circa 1964; Micronta 50mm, circa 1963, assorted 40mm zoom Tasco 4VTE terrestrial spotters. Edmund mount on homemade tripod between the two foreground scopes. http://i260.photobucket.com/albums/ii24/JethroTull1958/Micronta/Stereo%2001_... Tasco 15TEA 76.2mm with modified 40mm 4VTE guidescope. http://i260.photobucket.com/albums/ii24/JethroTull1958/ATM/Tasco/013_zpsqufa... Another view of the Tasco 15TEA. http://i260.photobucket.com/albums/ii24/JethroTull1958/ATM/Tasco/Guidescope%... Let us know if you see the 3D effect, or not. Remember, RELAX while trying it. Forcing your eyes crossed severely won't help. They only need to cross a little. Have fun.