Vortex KAI-5603 User manual

HD

Ocular Lens

Locking
Diopter

Center Focus

Tripod Adapter
Socket

Twist-up Eyecup

Strap
Attachment

Objective
Lens

Basic OperatiOn

Adjust the eyecups

The eyecups on a Kaibab 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.

IPD

Distance between the centers
of the ocular lenses.

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

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