Vortex Viper User Manual
Viper Binoculars
© Vortex Optics USA
Vortex
®
Vortex Viper Binoculars
A. Eyecups
B. Locking Diopter ring
C. Focus Wheel
D. Neckstrap attachment
points
E. Tripod adapter socket
F. Objective lenses
Congratulations on your purchase of the Viper binoculars. We’re sure
you'll find that these binoculars offer unparalleled optical performance and
are invaluable to your enjoyment of the outdoors.
The Viper features advanced XD low-dispersion objective lenses and
XR fully multi-coated optics for the ultimate in light transmission and
very bright images in all lighting conditions. Also, the Viper features a
phase-correction coating on the prism surfaces which further improves color
fidelity and contrast for sharper imaging, most noticeably under low lighting.
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The lightweight yet durable Vipers feature an internal focusing
mechanism, O-rings at all open points, and are nitrogen-purged to
render them waterproof, dustproof and internally fogproof.
Note for Eyeglass Wearers
The Viper binoculars feature long eye relief and multi-step retractable
eyecups for comfortable viewing whether you wear eyeglasses or not,
and to reduce the bothersome effects of lateral light.
· If you plan on wearing eyeglasses/sunglasses, make sure the
retractable eyecups remain twisted in towards the binocular body
(see A below). If the eyecups are twisted out, the view through the
binoculars will appear as though you are looking through a tunnel.
· If you do NOT wear eyeglasses or sunglasses, twist up the retractable eyecups in order to see the full field of view (see B below). If you do NOT
have the eyecups positioned correctly, you will note black “crescents” in
your field of view.
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Adjusting for interpupillary distance
In order to see one singular image, you must
adjust the two barrels of the binoculars to your
interpupillary distance (the distance from left
pupil to right). To do this, turn the barrels of the
binoculars on their central hinge until you see one
singular field of view with no disturbing shadows.
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