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

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  1. kimmik

    Zeiss SFL 8x40, A Field Review

    matching the coatings in varying combinations allows: A. Flat transmission curve, or B. Higher peak at a color of your choice at expense of the rest. coatings is a big part of optics maker’s secret sauce, imo.
  2. kimmik

    Zeiss SFL 8x40, A Field Review

    Thanks Henry. NL eyepiece side: orange yellow green blue white (basically rainbow) EL: similar but in different order
  3. kimmik

    Zeiss SFL 8x40, A Field Review

    Looking at the EL reflecting the cloudy sky, i see: purple, orange, white, green, white reflections. NL: purple, purple, yellow, blue, white These probably encode some kind of message but to me it just means multi-coated bino optimised to 90% efficient, neutral transmission.
  4. kimmik

    Zeiss SFL 8x40, A Field Review

    The biggest variation is the observer.
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