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

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  1. lewis20126

    canon EF 300mm f4 + 1.4 x converter or EF 100 -400

    Steve, I've got a 100-400 and its not sharp (proved by comparison with another identical lens). Most travelling birders I know have got rid of their 100-400. I think the 300 (with a converter where required) is a good way to go. I'll PM you about other views given above. Cheers, alan
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