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

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  1. T

    Swarovski eye candy...

    The BTX 115 has 35x magnification and an effective aperture of 110 mm for 3,1 mm exit pupils. The BTX 85 has 30x magnification for smaller 2,8 mm exit pupils. They will, however, both be dimmer than with the ATX ocular module due to the beam splitter. John
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