Thread: HowTo: Secret of the Hartmann Mask... Revealed!
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Old 06-02-2007, 10:58 AM
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Geoff45 (Geoff)
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Geoff45 is offline 		 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
The styrofoam is a great idea--strong and easy to work. Saves a lot of time stuffing around trying to cut plywood circles or sticking cardboard cutouts to the scope with masking tape. I now have a decent mask with less than 30 min work.
Thanks
Geoff
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