From: Ken Paul Rosenthal (email suppressed)
Date: Thu Jun 15 2006 - 09:27:51 PDT
I've tried many different materials for rear-screen projection, and my very
favorite by far is drafting vellum made by Clearprint. It's transluscent,
100% cotton fiber, very low grained/textured, and comes in 5 yard lengths,
widths from about 1 and a half to 3 feet, maybe more. Utrecht Art Supplies
in San Francisco carries it, and it is manufactured in Emeryville,
California.
One way to deal with hotspots is to project off a mirror at a 45 degree
angle, which also serves to reorient the image as if it were
front-projected, if desired. The mirror also presents innumerable
possibilities for manipulating the size/shape of the projection.
Ken
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For info on FrameWorks, contact Pip Chodorov at <email suppressed>.