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

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  1. Mark9473

    Zeiss 8x32 FL T* Owners VS Possible Up Grade To The Zeiss 8x32 Victory SF 8x32

    The reason is that when viewing at night (you mentioned double stars), the resolving power of the dark adapted eye is very poor. It may be something like 200 arc seconds. When you then use a 10x binocular to look at double stars, you're only going to resolve, at best, double stars that are 20...
  2. Mark9473

    Zeiss 8x32 FL T* Owners VS Possible Up Grade To The Zeiss 8x32 Victory SF 8x32

    You misunderstood what I wrote, or I was not clear. The theory you quoted, and the experiments you did, do not apply at the very low magnifications typical in most binoculars.
  3. Mark9473

    Zeiss 8x32 FL T* Owners VS Possible Up Grade To The Zeiss 8x32 Victory SF 8x32

    Binary stars are not a good example. Their resolution depends on eyesight and magnification. The eyes' resolving power at night is bad enough that the instrument resolution is no longer the determining factor.
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