I love those old stereoscope photographs. I recently saw an article explaining how to "free view" stereoscopic images. In the article they used an iPhone, but the nit has a better screen anyway. I think I'm going to try to make a stereoscope viewer/n810 holder if I can find the time. They seem simple enough. If anybody has any experience ideas suggestions or knows of photo repositories I'd love it if you posted. I found what appears to be a massive repository for stereoscopic images here if anyone is interested. It's handy that most stereoscopic images have been out of copyright for many many moons.
My 'free view' technique is to get reasonably close (so the image better fills my field of vision), then literally cross my eyes until I see four images - then slowly uncross them until the two center images 'merge'. Hold that steady for while so my eyes/brain adjusts, then it feels natural and I can enjoy the picture at ease.
I like the eye-cross technique, too, but many (if not most) stereoscopic images require you to look past the image (that is, make your eyes move farther apart rather than closer together). The the images on the minerals page and the lilypad girl are that kind of image.
To me, this is a much more "fragile" way to do it, I'm constantly losing the effect and I have trouble focusing on the picture properly...
I agree. That's why I think a stereoscope made to hold the n810 is in order. I think I could probably proof of concept one out of cardboard just to see how well one would work without any lenses.
I love stereoscopic images and also the magic eye pictures. But unlike qole I don't like the crossed-eye technique. I can't get a stable view with crossed-eye.
I prefer looking past the images and I'm really good at that an can switch views immediately at will.
I interpreted stereo aerial photos for 5 years, sitting inside all day looking at pictures of the outside. I can free view stereo images, but prefer to use a stereoscope - it's just much easier.
Using a pocket stereoscope I was able to resolve a 3-D image of the Lilypad photo on an N810 at full screen and quite easily.
Inexpensive "student stereoscopes" can be purchased for about $9 at forestry and scientific supply companies.