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

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  1. S

    Sky Rover Banner Cloud 8x42 APO Review

    I don't doubt you are right when comparing these alpha binoculars. But I can see difference between binoculars of a bit different class. And when comparing cheaper roofs to porros in same price range, porros are usually noticeably sharper.
  2. S

    Sky Rover Banner Cloud 8x42 APO Review

    I definitely can see sharpness difference between some different binoculars handheld without a resolution chart. With same or different magnification.
  3. S

    Sky Rover Banner Cloud 8x42 APO Review

    When comparing sharpness the difference can be noticable without a resolution chart if the difference is not very close. Sharpness and resolution is the same when comparing the same magnification. Sharpness can be described as relative resolution. For example 10x will mostly beat 7x unless the...
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