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hoya R72 Filter

  • From: Chris Hulme <chris.h@xxxxxxxxxxxx>
  • Subject: hoya R72 Filter
  • Date: Mon, 19 Aug 1996 21:05:16 +0100
Hi Everyone,

Could someone please tell me what the equivalent Wratten number is 
for the visually opaque hoya R72 filter?

Thanks in advance,


-- 
Chris Hulme <<chris.h@xxxxxxxxxxxx>>
Stoke-on-Trent, England.


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Topic No. 2