From: freddy@nomail.no   
      
   Hi all,   
      
   I'm looking for a lens, ideally singlet, to be   
   mounted on top of a 1/1.8" camera sensor (8.93 mm diag)   
   which would allow for 45° half field angle.   
   I've seen that I need 3.8 mm Equivalent Focal length.   
   Unfortunately, I canno't find such lens element as a standard.   
   Of course, there are objectiv lens with c-mount available in the market,   
   but I'm primarily ooking for a lens to be mounted directly on top of the   
   sensor. Does it mean that I need to have it designed specifically ?   
   I've seen that for cell phone camera lens, there are many plastic molded   
   aspherical lens used. Do you think that I need such a lens ?   
      
   Thnaks,   
      
   Fred   
      
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