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GEER TOP 90X Portable Astronomical Refractor Tabletop High Quality Telescope 360X50mm for beginners – Star Gazing, Bird Watching
Free postage
Sent via Royal Mail second class
Any delays due to Royal Mail is out of our control.
It is a high-powered telescope with good performance for observation of celestial bodies, suitable for entry-level amateur astronomers and children. Different magnification eyepieces assist with observations at different distances and sized objects.
Easy to use
Suitable for kids / children / beginner
Erecting Eyepiece
The 1.5X Erecting Eyepiece not only increases the magnification of the telescope but also corrects the direction of the image. For example, a telescope, which has a magnification of 60X, will have a magnification of 90X when a 1.5X Erecting Eyepiece is used. Moreover, when the telescope is used to view landscapes, the erecting eyepiece can straighten out the image.
Which Magnification?- Selecting The Correct Eyepiece
The optimum magnification depends on what you are looking at. As a rule of thumb, the best image results from using a magnification which is not more than 1.5X – 2.0X the diameter of the objective lens. For observation of most heavenly bodies, a magnification of 75X – 100X can be achieved with a 50mm objective lens.
A lower magnification should be used for the observation of the stars. This provides a wider field of view and simplifies aiming the telescope at the desired object.
The maximum magnification should be used only for particularly clear objects such as the moon, which is relatively close to the Earth and very bright, permitting good resolution of details at high magnification.
Package:
Main tube x 1
H20mm eyepiece x 1
H6mm eyepiece x 1
1.5X Erecting Eyepiece x 1
90 Zenith mirror x 1
33cm height Aluminum tripod x 1
Lens cloth x 1
Color Box
Features & details
MAGNIFICATION: 18X, 27X, 60X, 90X (6mm Eyepiece + Magnification = 60X; 6mm Eyepiece + Magnification with 1.5X Erecting Eyepiece = 90X; 20mm Eyepiece + Manification= 18X; 20mm Eyepiece + Manification with 1.5X Erecting Eyepiece = 27X).
REFRACTION TYPE/ FOCAL LENGTH: 360mm, Aperture: 50mm. Luminous: 0.139,Object lens focus:360mm. Theoretical resolution: 2,800 arc seconds, which is equivalent to 1,000 meters can be seen 1.357 cm apart two objects.
ALTITUDE-AZIMUTH MOUNTING. The high quality telescope is equipped with an altitude-azimuth mounting, can be moved vertically (altitude) and horizontally (azimuth).
HIGH QUALITY OPTICAL GLASS LENS, metal optical tube, aluminum table top tripod & 3 eyepieces.
IT IS A HIGH-POWERED TELESCOPE, suitable for entry-level amateur astronomers and children to explore land & sky!
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Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Bristol