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

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  1. B

    Biased test regarding exit pupil?

    The reason why the menu is more easily read with a pinhole of about 1mm is because of the greater depth of field, particularly if one is far sighted and/or elderly with limited accommodation. The astigmatism is a secondary factor. The same applies for short sighted folks who want to see...