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

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  1. Chosun Juan

    Is it time to change to 4/3

    Thanks Niels, Looking at the two it seems the Oly is about 1.5x longer than the Panny, and it's 400/f4.5 objective would have an area about twice the size of the 400/f6.3 Panny. If I guesstimate about 1/3 of the Panny's weight in the objective group then: Crunching some very rough numbers we...
  2. Chosun Juan

    Is it time to change to 4/3

    Anyone have any mail on what the Olympus Digital ED 150-400 f4.5 TC 1.25× IS PRO will weigh ?? https://m.dpreview.com/products/olympus/lenses/olympus_150-400_4p5_is_pro Chosun :gh:
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