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

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    Field of View

    How does a manufacturer determine the field of view on a new model binocular?
  2. D

    Travelite 'EB' or 'CF'

    Anyone know what the letters on the focus knob of the Travelites: 'EB' or 'CF', designate?
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    Zen warranty

    Is there a "transferable" warranty on the Zen 7x36ed2 ?
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    helicoid rubber eyecups

    Are 'helicoid' rubber eyecups: twist up and down ... or fold up and down ? thanks
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    How to check field of view ?

    Could someone please explain the simplest way to accurately measure a binoculars field of view. Can the fov be measured and marked on a wall at 10 yards and then just multiply that figure times 100 to determine the 1000yd fov ? thank you
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    Swift Eaglet 7x36

    If any new owners of the Zen 7x36 are now ready to let go of their Swift Eaglet 7x36 ,, let me know, I am looking for a pair (with the twist-up eyecups and the CFT coating) Send a PM. thanks (Hope I'm not bad for posting this here)
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    Zen 7x36ed2 -vs- Vortex Viper 6x32

    Hello: My first post here and I would like to thank everyone for the amazing amount of excellent information that you have all contributed. I have spent many enjoyable hours reading the comments, reviews, opinions, etc (mostly about binoculars)... and have enjoyed the (over my head) technical...
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