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

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  1. Alexis Powell

    8x32 or 8x42?

    I've long enjoyed Steve Ingraham's binocular reviews, but his articles that discuss issues related to optical theory (or perhaps more properly, theories about optics) have very often been on the, shall we say, "creative" side. You can see more of the same on his Z-birding site in the...
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