1
Thank you for choosing this Popular Science
™
by
Celestron
®
binocular. We hope they bring you many
years of enjoyment. To maximize the use of your new
binoculars, please read these instructions on use and
care before using them.
ADJUSTING THE INTERPUPILLARY DISTANCE (IPD)
SETTING THE DIOPTER COMPENSATION FOR A CENTER FOCUS BINOCULAR
WITH A RIGHT OPTICAL CHANNEL DIOPTER COMPENSATION DIAL
Since the distance between the eyes (specifically,
the distance between the centers of the pupils) varies
among individuals, the two eyepieces of the binoculars
must be correctly aligned (adjusted).
This is called adjusting the interpupillary distance. To
adjust this distance, using both hands, lift the binocular
up to your eyes and look through them at an object in
the distance. Move the two halves of the binoculars
about the hinge until you see one clear circle of image
through both eyes.
Roof Binocular
As most people have a difference in visual acuity
between their right and left eyes, modern binoculars
incorporate a mechanism that allows compensation
to be adjusted between the left and right optical
channels so that each eye is presented with an image
that is accurately focused for it. This compensation
mechanism should always be set using the following
procedure whenever a new user takes up a new
binocular, and should be repeated if a different
user changes this compensation setting or if the
compensation setting is noticed by the user to
no longer be appropriate for his or her own visual
requirements.
NOTE: If you normally wear eyeglasses for normal
daily activities (not just reading glasses but “full
time” eyeglasses) it is recommended that you also
wear them while using binoculars. Simply twist the
binoculars’ eyecups down to their lowest position
to allow the proper eye relief to be achieved while
wearing the eyeglasses.
1. Pick a subject to observe approximately 50 yards or
meters in the distance.
2. Cover the right objective lens with the binocular’s
own objective cover or with your hand.
3. View the selected subject through the binocular
as you normally would but do not attempt to focus
upon it yet.
4. Keeping both eyes open, use the binoculars’ center
focus dial to bring the image seen through the
binocular into focus.
5. Without touching the center focus dial, uncover the
right objective lens of the binocular and cover the
left objective lens.
6. View the selected subject through the binocular as
you normally would once again but do not touch
binoculars’ center focus dial.
7. Keeping both eyes open, determine if the subject
is still in clear focus. If it is not, use the binoculars’
diopter compensation dial to bring the image seen
through the binocular into focus.
8. Uncover the left objective lens and view the selected
subject through the binocular as you normally would.
It should be clearly in focus to both eyes. If it is not,
repeat this process.
9. Once the diopter compensation has been
satisfactorily set for the user, the center focus dial
will change the focus appropriately for the user.
IPD
PARTS OF A BINOCULAR
10X32 BINOCULAR
WITH SMARTPHONE ADAPTER AND
BLUETOOTH REMOTE
OUTLAND X
