silver screens

[P3D ron labbe <ron@xxxxxxxxxxxx>]

Rafael Ramirez writes:

>For this reason, flat metallic screens should be preferred (light permiting)
>over lenticular ones.
>

I disagree. While flat may be a hair better for extinction, the light is
reflected directly, as a mirror, thus resulting in serious light loss for
audience not directly in front of screen. However, your knowledge of
polarizers is overwhelming!

Gregory J. Wageman writes:
>The lenticules do not refract, only reflect.
>According to Da-Lite, their purpose is to reflect back towards the
>center of the viewing area, some of the light that would have reflected
>off to the sides if the screen were completely flat.  

Ah, you must mean the other way around, eh?

> --what films are known to depolarize?

I've found out the hard way that Kodalith film, used for titles and
masking, depolarizes.

Unfortunately, 3D is matter of compromises...


ron

ron labbe/ studio 3D
30 glendale st maynard, ma 01754
ph 508 897-4221 mailto:ron@xxxxxxxxxxxx

http://www.studio3d.com


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