Beam Splitter for video camera

[PK6811S@xxxxxxxxxxxxxx]

Maurice Smith writes:

>I am looking into the prospect of taking anaglyphic pictures by way of
>using a video camera. Early experiments of still subjects work out okay 
>by carefully repositioning the camera to film independent left/right
>images. 

Maurice, there are several ways to approach this (W. Carter?).  I have
been taking anaglyphic pics with a still camera for a year or so now.
The principle is simple: cover the left 'half' of the lens with a
red filter, the right 'half' with a blue-green filter.  Since both halves
focus a complete image at the focal plane the only difference between
the two (apart from color) is that the two 'halves' are horizontally
separated and therefore have a different perspective - just like your
two eyes.

In a compound lens the ideal thing is to cover the left and right halves
of the aperture opening.

Unless someone else has worked this out, you will need to experiment
with variations on the filters to get a good match with your
monitor.  Recommend you get a swatch book of lighting gels from a 
theatrical supply store and have at it - they are cheap and should give
acceptable results for video.

Paul Kline
pk6811s@xxxxxxxxxxxxxx


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