Vortex Optics VIPER R/T 10X50 BINOCULAR - Manual (Page 2)

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The Viper R/T binocular features fully multi-coated
optics and phase-corrected prisms for the ultimate in light
transmission and brightness in any light condition.
Optical Quality
Rugged Design
The 50mm Viper R/T binocular has a rugged roof prism
design. An internal focus mechanism, o-rings at all open
points, and argon purging contribute to the waterproof,
dust proof, internally fogproof design of this binocular.
Center Focus
Diopter Ring
Roof Prism Housing
Objective
Lenses
Tripod Adapter
Socket
Neckstrap
Attachment
Point
Adjustable Winged
Eyecup
Reticle Focus
With eyeglasses or sunglasses,
roll down the eyecups.
Without eyeglasses or sunglasses,
keep the eyecups fully extended.
Adjusting the Eyecups
The Viper R/T binocular feature winged eyecups that block
out stray light and rotate for a custom fit. These eyecups
roll up and down so any viewer can take advantage of the
long eye relief and enjoy comfortable, full-field viewing
even when wearing eyeglasses or sunglasses.
Adjusting the Interpupillary Distance
The interpupillary distance
(IPD) is the distance between the
centers of the left and right eye
pupils. Match the IPD of your
eyes to that of the binocular by
rotating the binocular barrels
inward or outward until you
see a single image that is free of
shading.
IPD
Adjust the IPD for a custom
fit and better views.
Binocular Adjustments