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

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  1. tenex

    Zeiss SFL 8x40 Eyecup Stray light issue!

    Mac, I'm surprised by how much of your eye I can see from the side in your third photo. Surely you need to open the hinge more to get the right spacing for your eyes? (It's typically around 65mm, center to center.) I wonder how you can be getting a usable view at all that way, never mind the...
  2. tenex

    Zeiss SFL 8x40 Eyecup Stray light issue!

    This is an uncommon complaint. Do you possibly have a vision issue like cataracts that could exacerbate glare or reflections others don't notice? In any case, winged eyecups may be the best solution, and at least SFL works better for you than M7. Fit to face is important.
  3. tenex

    Zeiss SFL 8x40 Eyecup Stray light issue!

    Welcome to Birdforum, Will. If you can add eye shields you must not be wearing glasses... SFLs have 18mm eye relief (common these days) which is quite a lot. Can you rest them comfortably against your face, as (presumably) with the M7? If the eyecups aren't quite deep enough for you and you...