Here is a list of items needed to start out in stereo. It is suggested here that it is best to start out with a stereo camera, as attempting to take stereo photos by taking two photos sequentially with a mono camera shifted between photos, is more complex than using a straight stereo camera. In addition the results are in general not as good, as objects always move between the two exposures.
The most easily obtained stereo camera is the Stereo Realist.
These cameras have were made in the 1950's, but are a true work-horse with
the result that most are still in use today. Prices range from US$100 (for
f3.5 lenses) to $400 for cameras with f2.8 lenses.
The Stereo Realist camera is an excellent camera, and respresents excellent
value.
The cutter shown is the "Stereo Realist" cutter. It is particularly good as the film can only be advanced an integral number of sprockets each time, thus ensuring that the film chips cut are all exactly the right width.
The stereo viewer is important as your camera in determining
image quaility, so it is best to get one of the better viewers. Fortunately
the Stereo Realist "red button" viewer shown is one of the most
easily obtained viewers, and it has high quality achromatic lenses. Prices
start at around US$100. The links list on this
site will assist you to locate a source.