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Tom Webster
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Photography has long been a hobby of mine, coming and going in waves.  I'll take a 500 pictures one month and then not pick up the camera again for two months.  I'm sensing a new surge coming on though, this time spurred by my recent purchase of a stereo camera.
We're all familiar with stereo (or 3D) photography.  Some of us remember the old stereoscopes from the early 1900s (can't say "turn of the century" anymore) with the stereoscopes and collections of cards.  Some of us young'uns only remember the little red View-Masters.  I enjoy them all a lot and have a collection of photos but never was able to take my own pictures until now.

The way it works is simple: people perceive depth because their eyes are a small distance apart and your brain has learned how to calculate the distance based on the the difference in perception between each eye.  OK, so that's actually REALLY oversimplifying it.  Lots of things affect depth perception including shadows, size, and even the expected amount of particulate matter in the air (ever notice how the mountains look closer after it rains?).  But the reason regular photos look so flat is because there is no difference between the images that reach each eye.  By taking two photos from two lenses spaced about 20cm apart and then presenting only one of the photos to each eye, you can trick your brain into perceiving depth.

Anyway, I just got my camera on Monday night and we've had nothing but rain since.  Today is looking promising though and once I get some pictures (and get them developed) I'll post some up here with instructions for viewing.


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Topics: stereophotography, Makes Things Go.
posted by MakesThingsGo on Wednesday, January 9, 2008 at 10:21 AM
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