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

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  1. jaymoynihan

    Historical Review of Swift 804 Audubon Binoculars

    Thank you folks for this fascinating . I saw mention of "Japanese manufacturer, Hiyoski Kogaku, Ltd." If i am not mistaken, they also manufacture the well known to amatuer astronmers "University Optics" Orthoscopic eyepieces, which are inexpensive, yet highly regarded for lunar and planetary...
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