colored vignetting

[P3D <PK6811S@xxxxxxxxxxxxxx>]

Allen wrote:

>I am at a loss to understand here...
>If you want to eliminate the colored vignetting, remove the filtres.
>
>The colored vignetting IS the 3-D information in the particular
>system you are trying to make.

The principle that makes anaglyphic SL3D work is to overlay a blueless
image from the left perspective with a redless image from the right
perspective on the film, then reconstruct them with red-blue glasses.
This is not vignetting (it is also not accurate to state that "the depth
information is encoded in the red-blue fringes of out-of-focus areas"
as someone else has done).

Vignetting occurs because the apertures for the two images are not
centered on the lens axis, causing the picture to be overly red on
the left and blue on the right.

Paul Kline
pk6811s@xxxxxxxxxxxxxx


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