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

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  1. nirofo

    Tc-20e Iii

    Do you really need to ask? The Nikon 70-200 f2.8 constant aperture is a pro quality lens and is in a different league to the Sigma. The only advantage the Sigma would have is the extra focal length, but then because the aperture changes to a smaller aperture as the lens is zoomed out, that...
  2. nirofo

    Tc-20e Iii

    Don't believe everything that Nikon tell you, they said that about the previous 2 versions of the TC20E and they both autofocussed fine, albeit slower than my TC14E. I can't see any reason why the latest version shouldn't autofocus also. nirofo.
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