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

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  1. Etiennef

    Filter for APO 77

    I use a UV filter from B+W, and I really don't see much difference with it vs. without it. The only significant issue I ran into was increased stray-light sensitivity (which can easily be sorted out). If I'm not mistaken it's this one...
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