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

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  1. B

    Review: Opticron MM4 77 GA / ED 45 with Opticron SDL v2 18-54x Zoom & HDF T WW 20x

    I bet the difference would show on a dark midwinters day of birding. I prefer the brightness of my 82mm rather then 65mm in winter. Not so keen on carrying the 82 of course 😀
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