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Stereo Photography has been around for about 150 years and the UK's Stereoscopic Society has been around for over 100 of them, but most people remember stereo as anaglyph (red/blue specs) movies from the 50's or the Red ViewMaster Viewer which works with discs of seven stereo pairs of slides. I started taking stereo pictures in 1991 after a one day holography class by Martin Richardson at the Royal College of Art and have gone on to use the technique in computer based 3D modelling and animation. Have a look at Stereoscopy.com for more things stereo.


 

Every stereogramme is made up of two images, one for each eyes point of view. At first glance both images look identical but for standard stereo the left and right camera lenses that produce these images are separate by around 70mm or normal eye width. Looking at the results in a stereo viewer replays the correct information into each eye which allows the brain to extract the magical spatial data recreating the scene as if you were standing there.



 

My own stereo camera is called an RBT and is engineered in Germany from two Ricoh SLR's. The 28-70mm lenses are coupled for zoom focus and aperture and it shoots 18 stereo pairs on a 36 exp 35mm film. For this to be possible it first exposes one pair with a gap of one frame in between then winds on a frame and shoots another pair. Four frames of film are now exposed so the next wind clears three frames before repeating the 1-3 cycle.



After normal processing I either project the slide pairs on a silver screen with polarised filters and polarised specs or use Jim Sharp's excellent Pinsharp viewer for hand viewing.


 

I have over 200 stereo pairs in this gallery running in chronological order. You can choose to freeview a stereo pair, look at the mono version or get your red/blue specs out for the anaglyphs.

 

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