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

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  1. H

    Any customer review of new tsn-99?

    Hi Bill, Out of curiosity, what's the eyepiece diameter? The Kowa has about 56 mm, I believe. Regards, Henning
  2. H

    Any customer review of new tsn-99?

    Found it now ... it was Thomas Steinich of Zeiss, and he stated a bit more guardedly than I remembered: "As for the star test, for me as an optical designer, the comparison between good and bad aberration correction is only possible with objective measurements equipment like interferometer or...
  3. H

    Any customer review of new tsn-99?

    Hi Henry, I once had a girl friend who worked in corporate "communications", and she said the game was to respond in a way that didn't tell the other person what he'd like to know. By the way, some industry representative once pointed out that he didn't trust star tests because they are, to a...
  4. H

    Any customer review of new tsn-99?

    Hi Binastro, I'd guess that the cost of fixing them would be uneconomic when it's perfectly possible to sell them as is. Partially, that's due to the fact that few customers are able to determine the actual quality of their scopes in relation to the potential of the design. (Personally, I...
  5. H

    Any customer review of new tsn-99?

    Hi, I wonder if minor misaligments of the adapter might be able to introduce additional artifacts that show shortcomings of the phone lens rather than those of the scope. Might be irrelevant in practice, but I thought I'd maybe bring up this question for the experts :-) Regards, Henning
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