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

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  1. B

    What determines the field of view for the same magnification and objective lens?

    The eyepiece determines the field. If the field stop is removed there is a blurry edge, which has limits and becomes fainter. There are small field, medium field, wide field, extra wide field and extreme widefield eyepieces. From say 15 degrees with a monocentric eyepiece to 120 degrees with...