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Jeahar®

20-60X 6mm High Definition Refractive Astronomical Telescope

Digg(179) ( 8 Reviews)
       
US $104.99
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Here this high definition telescope can satisfy your curiosity of exploring the universe. Featuring a lightweight construction, this astronomical telescope is easy to maneuver and set up. This HD telescope is suitable for daytime and nighttime. This refraction telescope features a 6mm optical caliber that ensures your great observation. With 20 to 60X magnification, this optical telescope can produce bright, clear images of the moon and planets. It is refined from the most advanced optical technology. This astronomical telescope is small and it is easy to carry. Advanced lens coating plated, excellent eye protection and credit to the role. 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. Once a 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 astronomical telescope is a great gift for any beginner who is interested in owning a astronomical telescope. What are you waiting for?
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Product Description

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  • Specifications:

    • Magnification: 20-60X
    • Objective Lens Diameter: 6cm/2.4in
    • Ocular Lens Diameter: 1.8cm/0.7in
    • Diopter: 3.6°-2.7°
    • Angle of Vision: 16.4°
    • Interpupillary Distance: 4-1mm/0.2-0.03in
    • Coating: Blue Film
    • Material: Metal
    • Color: Black
    • Lens Cone Size: 58.5 x 15.2 x 7.6cm/23.0 x 6.0 x 3.0in(L x W x H)
    • Total Height: 145cm/57.1in
    • Folded Height: 69cm/27.2in

    Features:

    • This astronomical telescope is a high-powered telescope, observing objects with high definition
    • This monocular telescope observes space at great distance
    • This astronomical telescope has a stable and reliable performance
    • This optical telescope is a great gift for your kids
    • This astronomical telescope has high magnification with a bright and clear image
    • This HD telescope can be easily installed without any assistant tool

    Details:

    Jeahar 20-60X 6mm High Definition Refractive Astronomical Telescope

    • This astronomical telescope is so convenient for you to take everywhere

    Astronomical Telescope

    • This high definition telescope can be easily installed without any assistant tool

    Optical Telescope

    • The objective lens of this astronomical telescope makes the view more clearly

    Monocular Telescope

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

    Jeahar 20-60X 6mm High Definition Refractive Astronomical Telescope

    • This 20-60X monoculars telescope is a useful educational tool for exploring nature

    Astronomical Telescope

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

    Optical Telescope

    • Pakage show; it includes a telescope, an optional lens cover, a proctective bag, a tripod and a manual book
    • This astronomical telescope is small and it is easy to carry outdoors

    How to Use a Refracting Telescope:

    Monocular 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?

    Jeahar 20-60X 6mm High Definition Refractive Astronomical 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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Elijah

Bought this item on

11-25-2011

 
great
00:00:00 11-25-2011
This product is amazing. Bougt it as a early Christmas gift for my boyfriend and he absolutely loved it as a begginer telescope. it is a great product.
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Alex

Bought this item on

11-23-2011

 
fantastic
00:00:00 11-23-2011
For the price i'd say this Monocular Telescope is solid and doesnt disapoint
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Evan

Bought this item on

11-23-2011

 
pleased
00:00:00 11-23-2011
shipped fast, works well for novice astronomers, don't expect deep space exploration but can see a lot of stars and plants very well. might upgrade some day but works very well for what i wanted it for.
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Carlos

Bought this item on

11-22-2011

 
cool
00:00:00 11-22-2011
This Astronomical Telescope looks awesome. it was very easy for me to install and they look amazing!!! Also shipping was superrrr fastt!!!
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Carlos

Bought this item on

11-18-2011

 
best
00:00:00 11-18-2011
Great value. Receiving lots of compliments. This Optical Telescope fits good and is a great value.
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Jack

Bought this item on

11-16-2011

 
great
00:00:00 11-16-2011
This Astronomical Telescope is a great product and well shipped. my son was super excited to get it for his birthday and we all are enjoying it. plus, it also looks cool just to sit around.
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Charles

Bought this item on

11-09-2011

 
nice
00:00:00 11-09-2011
I bought the Monocular Telescope as the presents to several of my friends and they told me they like the Optical Telescope very much! I am so delighted at that!
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Isaiah

Bought this item on

11-09-2011

 
perfect
00:00:00 11-09-2011
Service was prompt and the quality was excellent. I feel happy with it when going on a trip. These Monocular Telescopes are in great shape and designed careful!
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