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WarrenS
scholastic sledgehammer
Reged: 03/04/08
Posts: 895
Loc: Orange County New York
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Re: A new focussing mask
05/29/09 08:17 AM
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George, have you tried black sheet styrene? My other hobby is model railroading and I hand cut my Bahtinov masks from a 1mm thick 8"x16" sheet of black Evergreen sheet styrene(otherwise used to make roofs for model buildings). Styrene is pretty stiff and is readily available at a good hobby shop and the black styrene eliminates the need for painting.
I imagine sizes larger than 8" would be available.
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Warren
Astro-Tech 127EDT
Celestron Onyx 80ED
Astro-Tech Field Flattener
C8 (circa 1983 Orange Tube)
Atlas EQ-G, Orion SSAG
Canon 135mm F2.8
Canon 40D, Astronomik CLS clip filter
Leica, Minolta binos
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