BINOCULARS
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ENGLISH
WELCOME! THANK YOU FOR CHOOSING
THE CELESTRON SKYMASTER PRO ED
BINOCULAR. Prior to using your binoculars,
please read through these instructions to learn how
to properly operate and care for them.
A. Eyepiece
B. Diopter Adjustment Ring
C. Standard Eyecup
D. Focus Wheel
E. Center Support Rod (20x80mm only)
F. Tripod Adapter (20x80mm only)
G. Objective Lens
H. Tripod Adapter Port (7x50mm and 15x70mm)
1. Adjusting the Interpupillary Distance
(IPD)
To adjust this distance, lift the binocular to your
eyes using both hands and look through them at
a distant object. Move the two barrels (halves)
of the binocular closer together or further apart
until you see a single, clear image. Check that the
interpupillary distance is set correctly every time
you use your binocular.
IPD SCALE
PORRO BINOCULAR
2. Setting the Diopter
Whenever you begin using a new binocular or
resume using a binocular after someone else has
been using it, ensure the diopter compensation
adjustment dial is set correctly for your eyes. Once
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the dial is adjusted, you will not need to adjust it
again unless someone changes the setting or
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unintentionally turns it out of position.
To set the diopter compensation adjustment on a
SkyMaster Pro ED binocular:
1.
Set the dial at the zero point by placing the index
mark on the diopter adjustment ring opposite the
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zero or middle on the scale.
2.
Use one of the binocular's objective lens covers
to cover the right objective lens.
3.
Select a distant stationary object such as a tree
or sign as your focusing target. Keeping both
eyes open, raise the binocular to your eyes
and center the selected focusing target in the
binocular's field of view.
4.
Still keeping both eyes open while viewing the
target, use the center focus dial to bring the
target into sharp focus in the left eyepiece. Once
the object is in focus, do not adjust the center
focus dial again until the end of this process.
5.
Lower the binocular and move the objective lens
cover to cover the left objective lens.
6.
Still keeping both eyes open, find and view
the target again. This time, use the diopter
adjustment ring to bring the target into sharp
focus in the right eyepiece.
7.
Lower the binocular and uncover the right
eyepiece. You should now be able to view
through both eyepieces and adjust focus using
the center focus dial while maintaining the proper
amount of compensation between your two eyes.
f the diopter adjustment ring is ever moved, repeat
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this process.
(You may be wondering why you kept both eyes
open even though you could only see through one
optical channel at a time. It's because when you
close one eye, your visual acuity in the other eye
changes slightly due to the intricate and complex
arrangement of muscles surrounding both eyes. By
keeping both eyes open, your vision is as it would
be during regular use of the binocular.)
NOTE:
Your binocular has a diopter indicator.
Note your preferred setting for faster focus
adjustment the next time you use your
binocular.
3. Set the Eyecups
If you wear eyeglasses for nearsightedness, you
should wear them when using binoculars. You may
not be able to obtain focus at infinity without them.
Extend the eyecups if you will not be wearing
eyeglasses while using the binocular, or retract
them if you will be. When you are finished using the
binocular, retract the eyecups for storage.
Now you are ready to use your binoculars.
Enjoy the view!
4. Additional Features
T
o learn more about how to mount your Celestron
SkyMaster Pro ED binocular on a tripod for
steady viewing, how to attach astronomical filters
to the eyepieces, and how to set the eyecups to
accommodate them, please refer to the complete
instruction manual on the Celestron website at
www.celestron.com/pages/manuals.
5. Care and Cleaning
Binoculars do not need routine maintenance
other than making sure that the objective lenses
and eyepieces are kept clean. If repairs become
necessary, your binoculars should only be serviced
by the manufacturer or a third-party repair company
authorized by the manufacturer.
Collimation (optical alignment) is the biggest
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concern with binoculars. If your binoculars are
roughly handled or dropped, they may become
out of collimation and should be serviced.
Dirty objectives and/or eyepieces mean less
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light transmission, loss of brightness, and
unclear images.
When you are not using your binoculars, store
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them in the case provided. Avoid touching the
glass surfaces.
If fingerprints (which contain mild acid) do get
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on a lens, clean it as soon as possible to avoid
damaging the optical coatings.
To clean the optical surfaces, we recommend
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using
the
Celestron
Lens
(#93576) or good quality camera cleaning kit.
Follow the instructions provided closely.
If you have a lot of dust or dirt accumulated,
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remove it gently with a natural hair brush and/
or a can of pressurized air before using the
cleaning kit. Alternately, you could use the
Celestron LensPen Optics Cleaning Tool
(#93575) made especially for cleaning fine
optical instruments.
Never attempt to clean your binoculars internally
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or take them apart.
6. Caution!
Viewing the Sun may cause permanent eye
Cleaning
Kit