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

Recent content by simaoribeiro

  1. S

    Sigma 500mm f/4.5 APO EX HSM

    Greetings! I have been using the Sigma 500mm 4.5 EX DG for a year and i kinda get mixed feelings about this lens since it requires a LOT of tecnique and requires some fiddling on the microadjustments department. First of all im a newbie and since i bought this lens in second hand market it...
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