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www.vortexoptics.com
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www.vortexoptics.com
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.
Focus your left eye on the
object and 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 (ring found on the
right eyepiece) 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.
Maintain the optical brilliance of the Viper by keeping
the lens surfaces free of dirt, oils, and dust.
Protect Lenses While Out in the Field.
Caring for the Lenses
Make use of the rainguard and tethered objective lens
covers to protect the lenses when not viewing. Store the
Viper in its custom-molded carry case.
Keep Lenses Clean.
Along with normal use comes the need to clean the
binocular lenses. Follow these guidelines for cleaning:
1. Remove any dust or grit from lenses before
wiping.
Use a can of pressurized air or soft camel hair
brush (acrylic optical brushes also work well).
2. Clear lenses of smudges, fingerprints, or eyelash
oil.
Fog the lenses with your own breath and wipe with
the non-abrasive lens cloth included with the Viper
binocular.
Cleaning fluid and optical paper can also be used. However, you
should never use facial tissue, heavy cotton, or flannel clothing
on lenses—these materials can scratch the lens surfaces.
Other cleaning options:
