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

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  1. T

    Future Swarovski spotting scope

    IIRC, Henry Link estimated that the Harpia was at full aperture from about 40x upwards. John
  2. T

    Future Swarovski spotting scope

    I believe the US military use or used a Leupold 12-40x60 spotting scope. Another possibility is the Swarovski STR 80 and the old Meopta S1 scope was available with a 30x reticle eyepiece. Most biathlon coaches today seem to use either the Swarovski STX or the Meopta Meostar S2. John
  3. T

    Future Swarovski spotting scope

    The fundamental difference is that Swarovski uses a zooming eyepiece and the Zeiss Harpia uses a zooming objective. The latter comes with the disadvantage of a comparatively small exit pupil at the lower magnifications and impaired low light capability. An AFoV of 57° at the lowest magnification...
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