The slides need film cameras. The 3D pairs on prints can be obtained by any means, stereoscopic cameras, film cameras, or digital cameras. This choice determines the way to view the stereoscopic pairs.
In my opinion, the easiest way which gives impressive results is to use slides. Unfortunately, the slides have become tremendously expensive and are more and more difficult to supply.
The digital cameras are now providing functions that were difficult to appy on film cameras, such as the zoom and synchronization. Moreover the software "PhotoMaker" to prepare the stereoscopic pairs is really easy to use.
The means to view high quality stereoscopic pairs with a great comfort is not yet available to all in a digital way.



The viewer is nowadays made for 12x15cm (4"x6") prints, however old ones allows larger prints to be watched. On these, distance between lens and print can be set. They also can view slides.

A viewer can easily be made using two magnifying glasses and watching 4,5x6 cm (1-3/4x2-1/2") prints. Such glasses will be with lenses of 66mm focal length, which is 15 dioptries. Those already using glasses for near objects will have to add it to their usual glasses.


There are viewers to look at through, made especially for stereo photography. It is also quite easy to make oneself such a viewer with two simple ones. You must use your glasses if you use some to look at near objects. On some viewers, distance between slide and lens is adjustable, which is useful.
Another way to view slides is to use two projectors, with polarizing filters: one is vertical polarization, the other is horizontal polarization. The two images must be exactly superposed on the same screen. There are special twin projectors. You then watch it with special glasses with polarizing filters.




Buy two viewers HAMA "mini 1" ref. 3640 which  are cheap and convenient. Their characteristics are:
dimensions 61x61x35mm
lens Ø20mm with magnifying power x5 (

Fix each viewer next to the other.

I have personally removed the white plastic diffusing plate, and use it facing a white board, or a computer screen with a white image. Laptop computers are great as lighting table!



Do not worry to know which is right view, and which is the left view: just look at the viewer, and if inverse, you will see it obviously.



I put on the slides a red mark for the left side, and a green mark for the right side, just as port and starboard lights on boats.



See the page view on a screen