ORION TELESCOPES & BINOCULARS VISTA Instruction
Vista
™
Binoculars
Care and Use
Vista
™
Series Binoculars
Congratulations on your purchase of a precision Orion
Vista
™
binocular. With proper care and use it will provide
many years of superb, enjoyable viewing. To get the most
out of your binocular, please read the f ollo wing instructions.
W arning: Ne v er look at the Sun with binoculars or any other
optical instrument. Severe and permanent eye damage
could result.On sunny da ys, children should use binoculars
only with adult supervision.
Adjusting for the Distance
Between Your Eyes
The distance between the eyepiece lenses of the binocular
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.
Focusing
Vista binoculars feature a convenient center focusing knob .
However, because your eyes may differ slightly in their
focus , the binocular also includes a right ey e diopter adjustment. 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. Turn
the center focusing knob until the image in the left e yepiece
is sharp. Now cover the left objective lens and 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 f ocused for your eyes .Make a note of the diopter
setting so you can return to it quickly in the future.With the
right eyepiece no w set, focusing is achieved by rotating the
center knob.
Rubber Eyeguards
Vista binoculars feature rubber eyeguards designed to
bloc k out stray light and allo w easier positioning of the eyes
for viewing. When using the binocular without eyeglasses,
we recommend leaving the eyeguards in the extended (up)
position. For viewing with eyeglasses on, you’ll see more of
the field of view b y retracting the e y eguards .The ey eguards
on the 8x42 and 10x50 Vista retract by folding them back.
The eyeguards on the 7x50 model are the pop-down type.
These are retracted by pressing the rubber down on one
side of the ey eguard and then sliding y our fingers around to
the opposite side while applying downward pressure.
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