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Old 22-09-2009, 06:42 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,820
Quote:
Originally Posted by Allan_L View Post
I have tried a previous one of these, but there is this big plastic cover (over the central obstruction) in the centre of the lens that makes it difficult to place the mask flat.
Any ideas?
I’m not sure of how the C9.25 corrector cell and secondary holder compare to those of the C11, but here are a couple of photos showing my C9.25 Bahtinov Mask.

I glued a thin strip of closed cell foam around the circumference of the mask so it keeps the mask proud of the secondary holder, with the foam strip sitting nicely in the corrector cell. The side walls of the corrector cell prevent the mask from flopping about.

Cheers

Dennis
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