IN 610 Rev A 01/18
Orion
®
GiantView
™
Binoculars
#9327 15x70 model #9326 25x100 model
#51854 16x80 ED model #51855 20x80 ED model
Congratulations on your purchase of a pair of quality Orion bin-
oculars. The GiantView binoculars provide the large light grasp
you need for astronomical observation, and unlike a telescope,
allow you to use both eyes simultaneously for nighttime, or day-
time, viewing. This results in better image resolution, contrast, and
brightness than a similar sized telescope can provide. Coupled
with their wide fields of view, the GiantViews will make you feel like
you’re floating in space!
Please take the time to read this instruction sheet before using your
new binoculars.
Using the Tripod Mounting Post
When observing with large-aperture binoculars like the Orion
GiantViews, a photo tripod or some other type of binocular mount
is recommended. This is because the weight and high magnifica-
tion of the binoculars make it difficult to hold them steady by hand.
To attach the 70mm GiantView binoculars to a tripod, an optional
binocular-to-tripod L-adapter bracket is required; this is available
from the Orion catalog or telescope.com. The L-adapter threads
into the socket on the binoculars’ bridge (hinge). Refer to
Figure
1. Remove the threaded cover from the socket, and thread in the
L-adapter’s stud. The L-adapter connects to a standard photo tripod
or binocular mount via the ¼"-20 threaded holes in its base, thus
coupling the binocular to the tripod.
The 80mm and 100mm GiantView binoculars can be attached to
a standard photo tripod by means of its integral tripod mounting
post (
Figure 1). Simply thread the ¼"-20 stud of your tripod into the
threaded socket on the underside of the mounting post. The tripod
mounting post can be positioned anywhere along the brace rod to
optimize balance. To do this, first loosen the large knurled knob on
top of the post (Figure 1). Then, grip the binoculars and move them
forward or backwards relative to the post until the balance seems
about right. Re-tighten the knurled knob on the post when done.
The brace rod allows positioning of the binoculars relative to the
tripod mounting post, but also provides additional stability for the
binocular barrels. This helps maintain structural rigidity and optical
alignment.
Adjusting the Distance Between Your Eyes
(Interpupillary Distance)
Hold each barrel firmly and move them together or apart so the dis-
tance between the eyepieces matches the distance between your
eyes. When properly adjusted, you should see a single, round field
of view when looking through the binoculars. Make this adjustment
before you focus the binoculars.
Focusing
The Orion GiantView 15x70 and 25x100 feature individual focus
eyepieces. The 16x80 and 20x80 ED GiantView binoculars feature
a center focus with right diopter adjustment.
For the individual eyepiece focus models (15x70 and 25x100),
pick an object in the distance to view. At night, best focus will be
achieved by focusing on a bright star. Cover your right eye (or cover
the right objective lens of the binocular) and focus the left eyepiece
by rotating it until the image appears clearest. Then cover your left
eye (or cover the left objective lens of the binocular) and focus the
right eyepiece by rotating it until the image appears clearest. The
binoculars are now focused. If you want to view an object at a differ-
ent distance, re-focusing of both eyepieces is required.
To focus the center focus ED models (16x80 ED and 20x80 ED),
cover the right objective (front) lens with your hand. Turn the center
focusing knob until the image in the left eyepiece is sharp. Now cover
the left objective lens and focus the right side by rotating the right
eyepiece diopter ring (do not adjust the center focusing knob) until
the same object you focused on previously is sharp. The binocular is
now focused for your eyes. Make a note of the diopter setting so you
can return to it quickly in the future. With the right eyepiece now set,
focusing is achieved by only rotating the center knob.
Since everyone’s eyes focus images slightly differently, different
observers will need to refocus the binoculars for their own vision.
Fold-Down Eyeguards
Orion GiantView 15x70 and 25x100 binoculars feature fold-down
eyeguards. The eyeguards are usually left in the up position for use
without eyeglasses, as this helps prevent glare (unwanted stray
light) from entering between your eye and the eyepieces. To use
the binoculars with eyeglasses, you will need to fold the eyeguards
Brace rod
Tripod mounting post
Large knurled knob
WARNING Never look directly at the Sun through
your binoculars without professionally made
solar filters, even for an instant, or permanent eye
damage could result. Young children should use
these binoculars on sunny days only with adult
supervision.
Figure 1.
The GiantView 70mm, 80mm, and 100mm binoculars. Not
shown: 16x and 20x ED binoculars
Socket
#51854 16x80
ED model
#51855 20x80
ED model
#9327 15x70
model
#9326 25x100
model
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