Entries in stereo (1)
Stereo Photography 101
This well-produced video by Mark Gambier offers a clear, concise explanation of the history and science behind Stereo Photography. It doesn't get easier to understand than this!
(This is actually the first part of a longer video. Though as Mark notes in the comments, it was produced in 2006, so the section on Photo Equipment doesn't include the latest advances in digital camera technology.)
View the rest of his videos on YouTube.