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If you try to use the telescope before it has adjusted to the outdoor temperature you 
may find it somewhat difficult to focus accurately. 

 

3)  Find a location away from any direct light source. If you live in a large town or city, 

your viewing will probably improve the farther you move away from the ‘light 
pollution’ of city lights. The sky glow of a town or city can dramatically reduce the 
telescope’s performance and viewing capabilities. 

 
4)  Remove the round plastic dust cover (lens cap) from the front of your telescope. 
 
5)  We strongly recommend that you begin your viewing session with the 30X zoom 

power. It will give you the widest angle and the brightest, sharpest view. 

 
When possible, avoid sudden temperature changes, as the moisture in the air may 
condense as water droplets (dew) on the objective lens. If dew forms on your objective 
lens do not wipe it off. Take your telescope indoors and follow Step 2 – below on this 
page.

 

 

 
CARE AND CLEANING OF OPTICS 

 

Optical components of a telescope get dirty over time. Dirt or dust on a lens should be 
removed with the utmost care. A considerable amount of dirt or dust would have to 
accumulate on the optical surface before your view would be compromised. 

 

1)  Keeping the dust cap on during storage and transport and keeping the telescope in 

its case will reduce dust collection. 
 

2)  Condensation may collect on the optical surfaces when the telescope is not in use.  
Remove the dust cap and allow the moisture to evaporate naturally. Point the telescope 
downward to minimize the accumulation of airborne dust. 

 

3)  Once all moisture has evaporated, replace the dust cap. 

 

3)  Filtered, compressed air may be used to remove surface dust from lenses and 

mirrors. Remove the dust cap. Once removed, point the can away from the lens and 
gently expel some air and any condensation or dust that has accumulated on the 
discharge tube. Spray the lens with short bursts of air to carefully remove the dust 
particles. DO NOT HOLD THE TRIGGER OF THE COMPRESSED AIR CAN FOR 
EXTENDED PERIODS BECAUSE PROPELLANT FROM THE CAN MIGHT 
ESCAPE AND DAMAGE THE OPTICAL SURFACE.  

 
If, after several attempts, you cannot remove the particles, take the telescope to an 
optical professional for cleaning. 
 
If you keep the dust cap on your telescope when it is not in use and avoid handling the 
lenses, only minimal optical maintenance of your telescope should be required.

 

 
 
 

 

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Содержание NG55CS

Страница 1: ...NG55CS Maksutov Cassegrain Telescope Instructions and Owner s Manual Manual Part 264966...

Страница 2: ...ains valleys wildlife and many other wonders and features of the world around us Its compact size and light weight make it an ideal telescope for hikers travelers cottagers and anyone else who demands...

Страница 3: ...small directional changes there are two micrometric adjustments The vertical adjustment 3 is located at the rear of the tripod head and the lateral side to side adjustment 4 is located on the side of...

Страница 4: ...zoom ring 7 on the eyepiece You will have to re adjust the focusing knob 8 5 Note that as the zoom power increases the brightness of the image decreases This is quite normal To observe in low light s...

Страница 5: ...e amount of dirt or dust would have to accumulate on the optical surface before your view would be compromised 1 Keeping the dust cap on during storage and transport and keeping the telescope in its c...

Страница 6: ...t star but does not twinkle like a star does it looks like a tiny ball Venus Mars Jupiter and Saturn are the easiest planets to view Mercury is dimmer usually below the horizon and more challenging to...

Страница 7: ...onversely brightness increases when magnification is reduced If an image appears too dark or unclear use a lower power Views of small bright objects are superior to those of large dark or blurry ones...

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