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

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  1. J

    A Brief Review of the Zeiss Harpia 95

    Hi Henry, thanks a lot for your "short" test - other authors extensive tests contain less information. As usual, a spotter will not quite reach up to a very good astro scope... but it's more portable and waterproof. Joachim
  2. J

    A Brief Review of the Zeiss Harpia 95

    Hi, the definitve guide would be Suiter, the following is also not bad and available online... https://www.telescope-optics.net/star_testing_telescope.htm Joachim