6425851a   
   From: jasen@xnet.co.nz   
      
   On 2008-08-24, tiger  wrote:   
   > I know there are many cameras which can capture IR~UV spectrum.   
   >   
   > Then what about magnetic or electromagnectic spectrum?   
   > Is there such camera device for electromagnectic field?   
      
   the pinhole shoulde be atleast one wavelength across.   
   how big does that make the camera?   
      
   Bye.   
      Jasen   
      
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