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

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  1. R

    Any one used the Sigma 800/5.6 0r the 300-800/5.6?

    Duke, I used to have the 800mm 5.6 Sigma, the version before the DG or whatever the latest one is called. It was a pretty good lens, capable of good results particularly if stepped down a little. I think for the money it is excellent value, a good way of getting long reach with not too much...
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