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

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  1. B

    Keep or send back? Under the night sky. Star test 883 + TE-11WZ.

    Many thanks for sharing these pictures! SA seems to be corrected clearly better than in any sample I have tested (4). Astigmatism seems about as bad as the worst sample I saw. In my current sample there is some stig but if defocused to about 8 rings as these ones, it seems to dissappear. I...
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