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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   Message 11,186 of 12,750   
   =?UTF-8?B?TWF0aGlhcyBLxZFyYmVy?= to Dennis   
   Re: cheap IR pass/visible blocking filte   
   17 Sep 12 22:14:37   
   
   From: mathias@koerber.org   
      
   On 17/9/12 21:25, Dennis wrote:   
      
   > Exposed 35mm film passes IR.   
   >   
   >   
   > I remember mucking about one day & looking at a filament bulb through a   
   > reticule printed on 35mm film using an IR sensitive camera.   
      
   What type of film? Brand? for which process?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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