Orion Ventana 8x27 WP User manual

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Ventana™8x27 WP
Compact Binocular
Care and Use

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Ventana™8x27 WP Binocular
Congratulations on your purchase of a precision Orion binoc-
ular.This rugged, ergonomically-designed compact binocular
is nitrogen-purged and sealed to be completely fogproof and
waterproof. It features a slightly larger aperture than a typical
binocular of its class, for brighter images, while maintaining a
light weight. You’ll find the Ventana an excellent companion
for birding, sailing, camping, kayaking, or other outdoor pur-
suits. With proper care and use, it will provide many years of
superb, enjoyable viewing. To get the most from your binoc-
ular, please read all of the following instructions.
Warning: Never look at the Sun with binoculars or any
other optical instrument! Severe and permanent eye dam-
age could result. On sunny days, children should use this
binocular only with adult supervision.
Adjusting for the Distance
Between Your Eyes
The distance between the eyepiece lenses of the binocu-
lar should be adjusted to match the distance between your
eyes, called the “interpupillary distance.” To adjust the
binocular, hold each barrel firmly; move them together or
apart while looking through the binocular with both eyes
until you see a single, round field. Make this adjustment
before focusing.

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Focusing
The Ventana features a convenient center focusing knob.
However, because your eyes might differ slightly in their
focus, the binocular also includes a right eye diopter adjust-
ment. Follow this method for focusing: With both eyes open,
rotate the right eyepiece to the full counterclockwise position,
then sight on a distant subject. Cover the right objective (front)
lens with your hand (or simply close your right eye). Turn the
center focusing knob until the image in the left eyepiece is
sharp. Now uncover the right objective lens and cover the left
objective lens (or close your left eye, open your right eye).
Focus the right side by rotating the right eyepiece (do not
adjust the center focusing knob) until the image is sharp. The
binocular is now focused for your eyes. With the right eye-
piece now set, focusing is achieved solely by rotating the cen-
ter knob.
Rubber Eyeguards
The Ventana binocular’s rubber eyeguards allow easier posi-
tioning of the eyes for viewing while blocking some stray light.
When using the binocular without eyeglasses, we recom-
mend leaving the eyeguards in the extended (up) position.
For viewing with eyeglasses on, you’ll see more of the field of
view by folding them down. Merely press the rubber down on
one side of the eyeguard and then slide your finger around to
the opposite side while applying downward pressure.

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Cleaning and Care
The Ventana is nitrogen-purged and sealed to be com-
pletely waterproof and internally fogproof. While it is imper-
vious to rain, wind, splashing from a boat, humidity, and
the like, do not
immerse the binocular in water under any
circumstances.
If the binocular becomes wet with fresh water, merely blot it
dry with a clean cloth and clean the lens surfaces as outlined
below. Saltwater should be rinsed off completely and the
binocular then blotted dry and its lenses cleaned as outlined
below. If the binocular body becomes dirty, it can be cleaned
with warm water and a clean cloth. If extremely dirty, or oily,
clean the body with a dilute solution of warm water and mild
soap on a cloth, then rinse with clean water and blot dry. Do
not clean lens surfaces with soap and water!
The lens surfaces of your binocular are vacuum-covered
with delicate antireflection coatings, which can be dam-
aged by careless handling. Avoid touching lens surfaces
with your fingers or any scratchy, coarse material. Clean
the lenses a couple of times a year, more frequently if they
become noticeably dirty. Dust build-up can promote mold
growth, which can etch the glass and destroy the coatings.
Use the lint-free cloth that came with the binocular or opti-
cal lens cleaning tissue, and always use optical cleaning

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fluid specifically designed for multi-coated lenses. Never
use tissue or fluids made for regular eyeglasses or house-
hold use.
To clean the lenses, first puff air on their surfaces with a
blower bulb or compressed air to remove any large parti-
cles. Then it’s a good idea to brush the lens with a soft lens
brush. Next, put two drops of lens cleaning fluid on a sheet
of lens tissue (never directly on the lens). Wipe the lens
gently in a circular motion, taking care to avoid undue pres-
sure or rubbing. Quickly remove the excess fluid with a
clean, dry lens tissue.
Use of the supplied neck strap can help prevent acciden-
tal dropping of your binocular. Dropping is the leading
cause of optical failure in binoculars.

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Storage
Make sure the binocular is completely dry before storing it
in its case with the lens caps on. If the binocular has got-
ten wet, remove the moisture as described previously, and
let the binocular air-dry overnight (out of the case and with
lens caps off) before storing it in its case. Similarly, when
the binocular is brought indoors from outdoors where the
temperature and/or humidity was significantly different,
allow the binocular to dry out overnight before replacing
the lens caps and storing the binocular in its case. Always
store the binocular in a cool, dry place; storage in a humid
environment can result in mold growth and ruined optics.
This is not covered by the warranty.
Repair
If your Ventana binocular should require internal cleaning,
optical alignment, or other repairs, return it to Orion or take
it to a qualified optical repair shop for service. Never dis-
assemble the binocular yourself! Doing so can disturb the
precision optical alignment and will void your warranty.

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Specifications
Magnification: 8x
Objective lens aperture: 27mm
Waterproofing: nitrogen-purged, sealed
Exit pupil: 3.4mm
Eye relief: 11mm
Field of view: 8.2° / 430 ft. @ 1000 yds.
Close focus: 11 ft.
Prisms: BAK-4, Porro
Lens coatings: All air-to-glass surfaces coated,
with additional multi-coatings
Eyeguards: Roll-back, rubber
Weight: 16 oz.

BINOCULAR LIMITED WARRANTY
Orion®Ventana 8x27
WP Binocular
This binocular is warranted to be free of defects in materials
and workmanship for a period of two years. This warranty is
for the benefit of the original retail purchaser only. During this
warranty period Orion Telescopes & Binoculars will repair or
replace, at Orion’s option, any warranted instrument that
proves to be defective provided it is returned postage paid to
Orion Warranty Repair, 89 Hangar Way, Watsonville, CA
95076. If your product is not registered, proof of purchase
(such as a copy of the original invoice) is required.
This warranty does not apply if, in Orion’s judgment, the
instrument has been abused, mishandled, self-repaired, or
modified, nor does it apply to normal wear and tear. This war-
ranty gives you specific legal rights, and you may also have
other rights, which vary from state to state. For further war-
ranty service information, contact Customer Service, Orion
Telescopes & Binoculars, P.O. Box 1815, Santa Cruz, CA
95061; phone [phone].
IN 125 Rev.A 0799