Vortex Optics VIPER R/T 10X50 BINOCULAR User Manual

Page 3

Focusing the Binocular

Choose an object that is about 20 yards away from you
and follow this two-step process to properly adjust the
focus. Be sure to stay in the same spot until you have
adjusted both the center focus and diopter.

1. Adjust the center focus
Start by closing your right eye or
covering the right objective lens with
your hand. Adjust the center focus
wheel until the image is in focus.
Leave the center focus in this position
as you adjust the diopter.

2. Adjust the diopter
Start by closing your left eye or covering the left objective
lens with your hand. Look through your right eye and

adjust the diopter until the object
is in focus. Make note of this
diopter setting in case you need
to set it again.
From this point on, you will
only need to use the center
focus dial.

The reticle focus is located on the left ocular as you hold the
binocular. This focus is used to adjust the reticle image until
it is clear and sharp.
Focusing the reticle
is easiest when
closing the right eye
while setting this
focus. When looking
at a white wall or
the sky, adjust the
reticle focus until
the reticle image
is clear and sharp.
Once set for a
particular user, the
reticle focus can be
left in place.

Adjusting the Reticle Focus

Reticle Focus

Diopter

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

Caution