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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. A

    Kahles?

    I heard somewhere along the line that Kahles optics are produced in the same plant or produced by the same folks that produce the Swarovski optics. Any comments on this? I did some searching on this forum and found there might be some relationship, but I am still unclear as to what that...
  2. A

    ED or HD

    I notice Nikon touts ED glass and Vortex touts HD glass. What is the difference between ED and HD?
  3. A

    Vortex Viper HD versus Nikon Monarch 7

    Between the Nikon Monarch 7s or the Vortex Viper HD: 1. Which one is the better glass? 2. Which one is the better value?
  4. A

    Nikon Monarch 7 versus Vortex Viper HD

    Between the Nikon Monarch 7s or the Vortex Viper HD: 1. Which one is the better glass? 2. Which one is the better value?
  5. A

    Hello from PHX

    Greetings from Phoenix! I ran across this site while researching optics so I decided to join. Andy
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