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

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  1. H

    Light transmission; Classic v Victory 8x56

    Ron, Here's a photo that shows the difference in the exterior surface reflection colors between my Lotutec 8x56 FL and early 8x42 FL. The 8x56 is on the bottom and the window reflection on the right comes the exterior surface. The eyepiece exterior surfaces show the same difference. That's...
  2. H

    Light transmission; Classic v Victory 8x56

    Ron, I haven't seen a transmission plot for the FL, but I think the photo images in post #30 from the thread below show the color bias history of the FL series pretty well. http://www.birdforum.net/showthread.php?t=131853 My early 8x42 FL still appears more neutral to me than recent...
  3. H

    Light transmission; Classic v Victory 8x56

    Andy, Coatings improvement is really the only possible explanation. BTW, the cutaway view at the Polish site is misidentified. It shows the older 8x56 Victory, not the 8x56 FL. Henry
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