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Jeahar®

80-233 x 70mm Refracting Astronomical Telescope

Digg(173) ( 8 Reviews)
       
US $162.69
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Astronomy telescope is a great way to open up the wonders of the Universe to the aspiring astronomer! With incredible resolution, this refraction telescope shows amazing details for both astronomical and land observations! This astronomical telescope with 80 to 233X finderscope and tripod is perfect for stargazing! With 70mm objective lens, this optical telescope can produce bright, clear images of the moon and planets. Taken your first step into the stars of the world, your life will have more fun. Astronomical telescope has perfect design and skillful manufacture. This astronomical telescope is a modified monocular telescope used to magnify the images of distant objects by passing light through a series of lenses and sometimes prisms. Volume and weight are less than half those of binoculars of similar optical properties, making it easy to carry. When high magnification, a bright image, and good resolution of distant images are required, a relatively large instrument is preferred, often mounted on a tripod. This Refracting Astronomical Telescope is an ideal entry level telescope! Make the stars come to you! This astronomical telescope with tripod is perfect for stargazing.
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Product Description

Specification
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  • Specifications:

    • Fnumber: 10 
    • Objective Lens Diameter: 70mm
    • Magnification: 84/233X
    • Max. Magnification: 233X
    • Barlow Lens: 3X
    • Finderscope: 5X 20
    • Sighting Telescope: 6X 30
    • 1.25 Inch Eye Lens: K9 K25
    • Color: Silver & Black

    Features:

    • Accessories included: tripod, finderscope, barlow lens, two eye lens, shoulderbag
    • This optical telescope is the perfect telescope for the beginning astronomer
    • Simple operation and excellent performance so you can more easily into the astronomical world
    • Full-featured and rugged, yet incredibly lightweight, it's the perfect scope for stargazing to go 
    • Compact telescope has everything you need for stargazing, birdwatching, and admiring nature's grandeur
    • Astronomy telescope ensures the clarity and comfort of observation
    • Lightweight and easy for your young astronomer to move around on their own in exploring outer space, observing landscape or wildlife at great distance
    • Even if the user is a beginner, he/she would definitely operate this refractor telescope easily
    • The advanced optical system brings images sharply into view
    • Enjoy the freedom to learn, explore and discover-from anywhere
    • Observe landscapes or wildlife at great distance with this refraction telescope 

    Details:

    Jeahar 80-233 x 70mm Refracting Astronomical Telescope

    • Designed with this TP2 style tripod, the telescopes optical tube assembly is convenience and usability 

    Astronomical Telescope

    • The refracting astronomical telescope offers a quick release optical tube clamp for easy adjustment of the focus tube  

    Optical Telescope

    • This monoculars telescope is the most compact and light-weight binoculars among the binoculars of this class of magnification

    Refraction Telescope

    •  The tripod offers you a great convenience that can help you for hands-free viewing

    Jeahar 80-233 x 70mm Refracting Astronomical Telescope

    • It includs tripod, finderscope, barlow lens, two eye lens, shoulderbag 

    Astronomical Telescope

    • The view effect of the practical telescope is clear and fantastic

    How to Use a Refracting Telescope:

    Optical Telescope

    Refracting telescopes employ glass lenses arranged in a metal tube to gather light from distant objects, such as the moon, planets, star clusters and nebulae. When used in combination with interchangeable magnifying eyepieces, a refracting telescope lets you study these astronomical objects in extraordinary detail. Refractors offer improved optical clarity when compared with reflector telescopes, which use mirrors instead of glass lens. Learn to operate your refracting telescope correctly to take advantage of its superior optical capabilities

    Instructions:

    • Pick an observing site far from light sources. Porch lights, street lights and other sources of light pollution brighten the night sky, making faint objects difficult to observe
    • Lay the tripod on the ground. Extend each tripod leg to the same length, and then tighten the thumbscrews on each leg to secure it in place. Stand the tripod upright. Loosen the thumbscrews on the tripod's mounting bracket. Insert the telescope into the tripod's mounting bracket, and then tighten the retaining screws
    • Loosen the thumbscrew on the telescope's finder scope mount. Insert the finder scope into the mount, and tighten the retaining screw
    • Aim the telescope at an astronomical target. Pick a bright object, such as the moon or a star. Raise or lower the tube, and move it from side to side to point the telescope in the target's general direction
    • Look through the finder scope. Adjust the orientation of the telescope to center the object in the finder scope
    • Insert a low-power eyepiece -- one with 75X or lower magnification -- into the telescope's focuser. Tighten the retaining screw to secure it in place. Look through the eyepiece and verify that the object is in the field of view. If not, look through the finder scope and re-center the object. Adjust the focuser knob until the object appears sharp in the eyepiece
    • Insert a high-power eyepiece -- one with greater than 75X magnification -- into the telescope's focuser to study the object in greater detail. Adjust the focuser to sharpen the object in the eyepiece

    Tips & Warnings:

    • Consult the telescope's user manual to determine its focal length. Knowing the focal length lets you determine what magnification an eyepiece will provide when used with the telescope. Divide the focal length of the telescope by the focal length of the eyepiece to calculate the resulting magnification. A 600mm telescope, for example, provides 60X magnification when used with a 10mm eyepiece
    • Observing the sun through a telescope will seriously damage your vision

    How Are Telescopes Made?

    Refraction Telescope

    Optical Telescopes:

    • Optical telescopes use a series of lenses or a curved mirror to focus visible light. Optical telescopes that only use lenses are called refracting telescopes. Optical telescopes that use a mirror are known as reflecting telescopes. They are usually more powerful than a simple lens telescope

    Lenses and Mirrors:

    • Since light passes through the lenses of a telescope, the glass has to be free of impurities. This quality of glass is known as optical glass. Optical glass is coated to improve its performance and to make it less reflective. Mirrors that refract the glass don't have to be as pure

    Assembly, Calibration and Testing:

    • Once the glass and mirrors are created, the lenses are also tested to ensure that the glass has been ground correctly. To do this, telescope makers measure the lens against a lens that is known to be perfect. Once the lenses pass inspection, they are assembled in a tube-like telescope housing. Then they are calibrated for clarity

    Package Included:

    • 1 x Telescope

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Average Customer Review:
  ( 8 Reviews)
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Angel

Bought this item on

12-13-2011

 
perfect buy
00:00:00 12-13-2011
Very good telescope! One thing I noticed about this telescope is its excellent build. It is very well built,I got it, and the tripod is also worth the price. a very affordable, useful telescope for the amateur, with an excellent build and good optics.
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Trevor

Bought this item on

12-09-2011

 
fantastic
00:00:00 12-09-2011
I can't personally vouche for this product. I bought it for my son-in-law for early Christmas gift and he loves it. He's planning on purchasing some accessories for it, so evidently it's a big hit with him.
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Melissa

Bought this item on

11-24-2011

 
good
00:00:00 11-24-2011
For the money - I would say that this is very good. <br/>My son loves it, my daughter loves it and even my husband can't believe it's that good for what we paid for it. <br/>Views stars and planets well, and we can even see the moons of various planets. This was a smart buy for my kids.
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Bailey

Bought this item on

11-24-2011

 
great
00:00:00 11-24-2011
Purchased this Refraction Telescope and would have been satisfied if I had paid twice as much. Everything arrived packed well, and the telescope is of very good quality. Go ahead and purchase it, you will not be disappointed.
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Isaac

Bought this item on

11-21-2011

 
PERFECT
00:00:00 11-21-2011
The appearance of the Refraction Telescope is very fashionable. Moreover, the lightweight Refraction Telescope is also in good quality!
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Nathaniel

Bought this item on

11-17-2011

 
pleased with it
00:00:00 11-17-2011
The Astronomical Telescope comes with night vision function is convenient to use at night!
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Patrick

Bought this item on

11-12-2011

 
nice
00:00:00 11-12-2011
I am not satisfied that the Optical Telescope has only 80-233X magnification. In general, the Optical Telescope can be called perfect gift.
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Richard

Bought this item on

11-09-2011

 
great
00:00:00 11-09-2011
I love the Astronomical Telescope very much. I can have a wonderful visual feast with this perfect tool.
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