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Celestron UpClose G2 10×25 Monocular Instruction Manual

Celestron UpClose G2 10x25 Monocular  FEATURE


Celestron UpClose G2 10×25 Monocular 

Celestron UpClose G2 10x25 Monocular  PRODUCT

About Celestron
Celestron is a well-known American company specializing in the manufacturing of telescopes, binoculars, spotting scopes, and other optical instruments for astronomy and outdoor observation. The company was founded in 1960 by Tom Johnson, who had a passion for amateur astronomy and a vision to make quality telescopes accessible to enthusiasts and professionals alike.

Celestron initially gained recognition for its revolutionary Schmidt-Cassegrain telescopes (SCTs), which combined the compactness of a refractor with the versatility of a reflector. The SCT design allowed for powerful magnification while maintaining a relatively portable and user-friendly form factor. This innovation made Celestron telescopes popular among amateur astronomers and propelled the company to the forefront of the industry.


To obtain a sharp view through your monocular, you need to adjust the focus. Rotate the focus wheel until you have a sharp image. Hint: Eyeglasses worn for nearsightedness should be worn when using monoculars, as you may not be able to reach a sharp focus at infinity without them.


To obtain the maximum field of view, twist or fold the rubber eyecup up if you do not wear eyeglasses and twist or fold it down if you do wear eyeglasses.Celestron-UpClose-G2-10x25-Monocular-Instruction-Manual-1


Monoculars do not need routine maintenance other than making sure that the objective lens and eyepiece are kept clean. If repairs become necessary, they should be serviced by the manufacturer or a qualified monocular repair company. If your monocular is roughly handled
or dropped, there is a good chance that the collimation (alignment of the optics) will be out and they should be serviced.

A dirty objective lens and/or eyepiece means less light transmission and loss of brightness as well as unsharp images. Keep your optics clean! When not using your monocular, store it in the soft case provided. Avoid touching the glass surfaces of the monocular, however, if fingerprints (which contain mild acid) do get on the glass, they should be cleaned as soon as possible to avoid damaging the coatings.

To clean the optical surfaces, we recommend a lens/optics cleaning kit available at most photo or optical shops. Follow the instructions provided with the kit closely for best results. If you have a lot of dust or dirt accumulated, brush it off gently with a camel’s hair brush and/or utilize a can of pressurized air before using the cleaning kit. Alternatively, you could use the Celestron LensPen (# 93575) made especially for cleaning monoculars.

Never attempt to clean your monocular internally or try to take it apart!

CAUTION! Viewing the Sun may cause permanent eye damage. Do not view the Sun with your monoculars!

PROBLEMS OR REPAIR: If warranty problems arise or repairs are necessary, contact the Celestron customer service department if you live in the U.S.A. or Canada. If you live elsewhere, please contact the Celestron dealer you purchased the monocular from or the Celestron distributor in your country (listings are available at www.celestron.com).


Your monocular has the Celestron Limited Lifetime Warranty for the U.S.A. and Canadian customers. For complete details of eligibility and for warranty information on customers in other countries visit the Celestron website.

Celestron monoculars are designed and intended for those 13 years of age and older.


2835 Columbia Street • Torrance, CA 90503
U.S.A. Tel: 310.328.9560 • Fax: 310.212.5835
©2012 Celestron
All rights reserved. 

FAQS About Celestron UpClose G2 10×25 Monocular 

Is Celestron a reliable name in binoculars?

Possibly the best digiscoping companion for anyone wishing to capture images of the moon and the night sky

Where are Celestron telescopes manufactured?

USA, California, Torrance

Who is the manufacturer of Celestron?

Taiwan’s Synta Technology Corporation

Can a Celestron telescope see planets?

The Celestron NexStar 8SE is ideal for viewing the Moon and planets at high magnification.

Can Celestron be trusted?

The Celestron NexStar 5SE, in our opinion, is the ideal telescope for an enthusiastic amateur.

Does Celestron still operate?

For many years, Celestron has been a pioneer in the optics sector.

How good are Celestron’s eyepieces?

Excellent starting point for the superior 4-element Plossl design.

Does Celestron work well with telescopes?

An excellent telescope for newcomers.

Why am I unable to see with my Celestron telescope?

A alternative eyepiece might be used.

Do telescopes have color vision?

The telescope completely misses color.

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