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

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  1. G

    Advice or opinions please

    I have the same as you, and have not yet upgraded for birding, but the shop I bought the lens from said it was not good enough for a converter. I have no other grounds for saying that, but it would lead me to buy the 500m which would give you 750mm and might do. I can get "nearer" with an...
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