Sign in
My Cart (0)
All Categories

Keywords: Led Flashlights | Short Wedding Dresses | Cheap Tablets | Gopro | Clearance Sale

View or edit your browsing history Products I Viewed
Get DinoPoint by Writing reviews, Post Images, or Post Videos. The first five customers can get double points!
Supplier item info
Jeahar®

300X 90mm High Magnification Astronomical Telescopes

Digg(146) ( 8 Reviews)
       
US $203.69
Qty:
United states Via Estimate shipping fee
· Orders over USD$ 50.00 will get free tracking services via air mail
Are you an astronomy enthusiast? Do you need a great refraction telescope? The high magnification astronomical telescope can help you. We highly recommend this astronomical telescope.A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation. This refraction telescope features a massive 90mm optical caliber that ensures your great observation. With 300X magnification, this optical telescope can produce bright, clear images of the moon and planets. It is refined from the most advanced optical technology. This 300X 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 refracting 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 is your best choice! You will get more than you paid!
Flash Deals
Lowest Price Challenged!
 
View Details>>

Best Deals

Customers Also Bought

Product Description

Specification
Return Policies
  • Specifications:

    • Magnification: 300X
    • Objective Len Diameter: 9cm/3.5in
    • Focal Length: 90cm/35.4in
    • Sighting Telescope: 5 x 2.4cm/0.9in
    • Inclined Mirror: 90°
    • Len: 360° Rotatable
    • Eyepiece: K0.9cm/0.4in, K2.5cm/1.0in
    • Tripod Height: 135cm/53.1in

    Features:

    • The astronomical telescope comes with the tripod that can be mounted to the tripod for hands-free viewing
    • The astronomical telescope with 166X high magnification lens makes the view more clearly
    • Astronomical optical telescope is very convenient for outdoor use
    • This refraction telescope is easy to install and don't need any auxiliary tools 
    • Advanced optical lens coating plated, excellent eye protection and credit to the role
    • Using the most advanced technology, astronomical telescope is easy to carry
    • 166X telescope built-in wide ultra-clear as a mirror, so that your viewing angle greater

    Details:

     Jeahar 300X 90mm High Magnification Astronomical Telescopes

    • Advanced optical lens coating plated, excellent eye protection and credit to the role

    Astronomical Telescope

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

    Optical Telescope

    • Astronomical telescope with skillful manufacture will  make your vision clear

    Refraction Telescope

    • Astronomical Telescope with super ultra-large aperture is convenience for you to observe

    Jeahar 300X 90mm High Magnification Astronomical Telescopes

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

    Astronomical Telescope

    • Package show
    • This 300X astronomical telescope is small and it is easy to carry outdoors

    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 Astronomical Telescope

Get Dino Point ™ by Writing Reviews!
Get DinoPoint™ by Writing reviews, Post Images, or Post Videos. The first five customers can get double points! See More>>
Average Customer Review:
  ( 8 Reviews)
Share your thoughts and get DinoPoint!
Write a Review
Specific Rating for This Product:
Product
Rating:
Price:
Quality:
Ease Of Use:
Usefulness:
Features:

Jason

Bought this item on

11-28-2011

 
best
00:00:00 11-28-2011
I loved the product, arrived very fast. I was able to quickly assemble and use, learning to use the lens you use and correct the telescope.
Was this review helpful?
0
0
Share to:

Caleb

Bought this item on

11-28-2011

 
good
00:00:00 11-28-2011
I was looking for an affordable Astronomy telescope so that I can easily set up without taking too much time. A friend recommended this so I decided to purchase this ONE! The images were brighter when I compared it to my friends telescope. I am very pleased with my experience with this telescope and the price is great!
Was this review helpful?
0
0
Share to:

Eric

Bought this item on

11-23-2011

 
fantastic
00:00:00 11-23-2011
This Astronomical Telescope is very helpfull viewfinder. i am pleased with this telescope.
Was this review helpful?
0
0
Share to:

Aaron

Bought this item on

11-19-2011

 
great
00:00:00 11-19-2011
I have been using this Optical Telescope for about a year now and it never bores me.
Was this review helpful?
0
0
Share to:

Ethan

Bought this item on

11-16-2011

 
perfect
00:00:00 11-16-2011
Tonight is a full moon and the sky is crystal clear;I would surprise him with this Refraction Telescope as the early Christmas present so that we could look into the galaxy.
Was this review helpful?
0
0
Share to:

Cameron

Bought this item on

11-14-2011

 
pleased
00:00:00 11-14-2011
This optical telescope looks like it cost as much as some of the high priced telescopes and it works just as well, This is quite a bang for the buck. Thank goodness, I order everything from here now.
Was this review helpful?
0
0
Share to:

Hunter

Bought this item on

11-14-2011

 
best
00:00:00 11-14-2011
The item is an amazing element for the amateur, great view, strong materials, the only thing to must be improve it's the tripod, this one is difficult to stay firm when the object to see is located. But in general lines is a great telescope for beginners.
Was this review helpful?
0
0
Share to:

Nathan

Bought this item on

11-09-2011

 
pleased with this purchase
00:00:00 11-09-2011
This Astronomical Telescope is well-made scope when we took it out of the box. The fact that it is so easy to use makes it a really great scope.
Was this review helpful?
0
0
Share to:
Copyright DinoDirect Corporation 2014. All rights reserved. See our privacy policy, terms of use, disclaimer and takedown policy.
Sign In submit Submit Apply >> Continue Join Now Add Store To Wishlist Add a new address Back >> Continue checkout Save Cancel Remove/Change Items Add To Cart Shop Now Create Register now Open a Case Start a Live Chat View all < Create An Account Return to Sign in Send Confirmed Application Email Verification Get It GO Enter My iDinor Life! Close Join My Homepage Continue Shopping Share Rewards Accept Accept and Check >> Search Back Close the case Pay Now Cancel Submit Confirm Save Click for more info Write a Review Yes No Reply Sold Out Size Guide Color Guide No thanks Continue Upload Share Rewards Accept and Check >> Search view more Next et Transaction Code >> Confirm Remove Upload Video Upload Images >> Continue checkout Get Free Sample Write a feedback Buy Now OK Start Chat Create An Account No, thanks! Go Remind me 7 days later