Vortex Viper HD Instructions Manual

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Objective Lens

Ocular Lens

Twist-up Eyecup

Strap
Attachment

Tripod Adapter Socket

Center Focus

Locking
Diopter

IPD

The eyecups on a Viper® HD binocular twist up and down so any

viewer can see the full field and enjoy comfortable viewing—with

or without eyeglasses.

When not using eyeglasses or
sunglasses, keep the eyecups fully
extended. For the best viewing
when viewing through eyeglasses,
twist eyecups down.

Adjust 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 so that you see a single image that is free of shading.

Basic OperatiOn

Adjust the eyecups

Rotate the binocular barrels
inward or outward to line your
eyes up with ocular lenses.

Distance between the centers
of the ocular lenses.