Vortex CF-4302, CF-4301, CF-4303, CF-4304 User manual

Ocular Lens

Diopter

Center Focus

Tripod Adapter Socket

Twist-up Eyecup

Strap
Att achm ent

Objective Lens

BAS I C OP ERATION

Adjust the eyecups

Enjoy comfortable viewing even if you wear eyeglasses. Simply
twist the eyecups up or down to see the full field of view. Keep

the eyecups fully extended if you aren’t wearing eyeglasses or
sunglasses.

Adjust the interpupillary distance

The interpupillary distance (IPD) is the distance between the
centers of the left and right pupil. Your binocular also has an IPD.
To see a single image free of shading, rotate your binocular until
its IPD aligns with your eyes.

Caution

Binoculars are not intended for looking at the sun or other
intense light sources. Such viewing could damage the retina and
cornea of your eyes—even to the point of causing blindness.

The IPD of a binocular is the
distance between the center of
the left and right ocular lens.

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

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