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

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    Binocular Evolution I: Field of View

    So what is exactly is gained by a purpose-built narrower FOV, for the same money, compared to putting a donut on the objectives of your wide field to block out the edges you don't like (but maybe your wife DOES like)? Instead of buying two dissimilar bins, buy extra lens covers & use a hole saw...
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