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

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  1. CharleyBird

    The case for the 8x56.

    "In astronomy, they always say aperture rules, but I am beginning to think it applies to birding also." Perhaps denco is using them sitting supported in a chair for his twilight viewing? For a specific situation they may be the best for him. But these 8x56 he mentions are 1200-1400g in...