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Protostar Flocked Light Trap Material Features:
Effective even at high angles of incidence
Made from moisture-proof synthetic material
Image contrast suffers when stray light reaches the focal plane. The best flat black paint still reflects about 5% of incident light, and even more when viewed at high angles of incidence (AOI). ProtoStar flocked light trap material is specifically engineered to be a light absorbing surface, and is equally effective at all angles of incidence. Unlike "decorative" flocking grades, the fibers don’t shed on your optical surfaces. The material is 100% synthetic based, so it's not damaged by moisture.
The most common use is to line the inside of your telescope or upper cage, but is also used in home theaters, box cameras, light trap boxes, spectrographs, and many other uses. Small pieces can be used to cover exposed edges of secondary mirrors and primary cells, covering annular baffle surfaces, and Barlow lenses. The improvement in field contrast is most noticeable when you look at a bright planets and the Moon.
