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

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  1. dorubird

    "David Bowie" special eye lenses (will your eyes tell the difference?)

    Maybe the coating from that time (also Zeiss in the 70s and 80s had a slight yellow tinge) and maybe that was intended because the yellow enhances the contrast illusion a bit. I put an image with the IOR 7x40 exit pupil compared to the my Nikon HGL 8x32 exit pupil
  2. dorubird

    "David Bowie" special eye lenses (will your eyes tell the difference?)

    Yes! IOR is a binocular made in Romania and it really has a very good contrast. The IR filter version was only on one of the tubes and was used to observe IR military signaling at a distance. There are also versions with a reticle with a measuring scale. But all the binoculars also came with two...
  3. dorubird

    "David Bowie" special eye lenses (will your eyes tell the difference?)

    If we put a UHC filter, which will cut a lot of the visible spectrum, then we will notice a visual discomfort as if we had something on our eyes. This is somehow the limit you were talking about "Hey, there's something funny going on here". I just did these tests right now :cool:
  4. dorubird

    "David Bowie" special eye lenses (will your eyes tell the difference?)

    For example, in astronomical and microscopic binoviewers you have a slightly darker path. And yet our brain combines the images into one without noticing the difference. We can make a exaggerate experience and put an astronomical yellow filter over one of the eyepieces, so that when you look at...
  5. dorubird

    "David Bowie" special eye lenses (will your eyes tell the difference?)

    I bet you won't see any difference! Our brain anyway sums up both images into one! Keep enjoying your Canon!
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