Wed. May 22nd, 2024

TOPOPTICAL 120900 Professional 450x Astronomical Telescope Refractor HD Powerful Monocular Equatorial Mount Sports Entertainment

TOPOPTICAL 120900 Professional 450x Astronomical Telescope Refractor HD Powerful Monocular Equatorial Mount Sports Entertainment


999 in stock

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SKU: 3256805572440022


Astronomical Telescope FAQ
1. Is it means the higher the magnification, the better quality?
—- No!
2. Why some telescopes are so expensive? What are main reasons to influence the telescope price?
—1) The size of objective lens. The larger objective lens can collect more lights, which means the telescope with larger objective lens size can have clearer view when the magnification become higher and higher. Then it comes to the price, the lager lens, is more difficult to produce, it needs more time and more precise procedure to keep it in good quality.
—2) The other components of the telescope can also influence the price, for example: the tripod material, the main tube material, the lens of eyepiece quality etc,..
3. How to select a astronomical telescope?
Engaging into the astronomy interest
1) You need to know your budget,
2) Is the user a newbie? If yes, it’s better to have a entry-level model which normally is cheaper and easy to use. It would be more reasonable to have a more professional astronomical telescope after the user know more about telescope and astronomy.
The is some recommendation models:
Entry-level: YJ50360, YJ70300,YJ70400,YJ60700, YJ76700, YJ80500, YJ90700
Professional: YJ80900, YJ130650, YJ120900
4. What is the meaning of the telescope model?
For example: YJ50360, "YJ" is the brand sign, "50" means the objective lens diameter is 50mm, "360" means the focal length is 360mm
5. How to calculate the magnification?
Focal length ÷ eyepiece focal lens × barlow lens times
For example: YJ50360 telescope +20mm eyepice + 3x barlow lens
Magnification is: 360÷20×3=54
So the magnification is 54x

【Product Parameter】

  1.Type: Refractor

  2.Aperture: 120mm

  3.Focal length: 900mm

  4.Eyepiece: K10mm, K25mm

  5.Barlow lens: 3x

  6.Finder scope: Red dot scope

  7.Prism: 45°Correct Image Prism Diagonal

  8.Tripod: Stainless steel


【The Main Functions】

  1. High definition, max270times real golden magnification, easy to see moon craters, craters, ravines on the moon,Saturn….

  2. A professional telescope.

  3. When the weather is clear and in the good condition, you can see the signs of Saturn’s rings and Jupiter stripes (the largest dark line), Jupiter,              Venus, nebulae, constellations, meteor showers, etc.

  4. You can watch the scenery, bird watching and buildings on the ground during the daytime.

【Free Gift】

1.  Compact binoculars and monocular.

2. Mobile phone adapter: It can connect your mobile phone to take pictures and share with your friends.

3. Sun filter: Only use sun filter can watch the sun through the telescope, otherwise you eyes will have irreversible damage.

4. K6mm eyepiece

In the absence of solar film protection, it is forbidden to use a telescope/binoculars to look directly at the sun, otherwise it will cause irreversible damage to the eyes!!!

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