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

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    Canon RF 200-800mm IS USM

    These images look very good to my eyes, I would be happy with results like these @800mm. Were these at wide open f9 or stopped down? It's also worth to keep in mind that not all lenses, even the expensive L- series ones, are allways optically equal samples. Regards, Juhani
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    Canon RF 200-800mm IS USM

    How exactly are these "cheap low end piece of optics" an insult to your lineup; many many nature photography competitions are won with optics in 2000$ price category or clearly less? They can be extremely cabable tools just as the more expensive ones. Regards, Juhani
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