On Monday, September 29, 2014 9:14:31 PM UTC-4, Tom Miller wrote:   
   >  wrote in message   
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   > news:844abad9-de3d-4b69-9e99-0a18410716aa@googlegroups.com...   
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   > > On Monday, September 29, 2014 8:21:34 PM UTC-4, Tom Miller wrote:   
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   > >>  wrote in message   
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   > >> news:61fa8ed9-ce12-48fb-a260-b281e5d82d7f@googlegroups.com...   
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   > >> > Hi All,  We've are using these 0.7ND kodak wratten  #96 ND filters.   
      
      
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   > Another thought. The films used for automotive window darkening. I think   
   > they are graded for optical density.   
   Hmm OK I wonder where I can find such things... maybe another trip through the   
   McMaster-Carr catalog?   
      
   George H.   
      
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