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GEERTOP® 90X Transportable Astronomical Refractor Telescope, 360X50mm, For Children Sky Star Gazing & Birds Watching
$60.00 (as of November 20, 2016, 6:38 pm)
It’s a top-powered telescope, with excellent potency commentary of celestial our our bodies, suitable for access-stage newbie astronomers and children. Utterly other magnification eyepieces may make you unfastened with spotted at completely other distances and sizes gadgets . And the telescope for the reason that viewing replicate, could be upright image completely. As long as you will have enough imagination, there will likely be further crowd pleasing and good usefulness.
WHICH MAGNIFICATION?- SELECTING THE CORRECT EYEPIECE
The maximum magnification is determined by what you are looking at. Most of the time of thumb, the easiest image results from using a magnification, which is not more than 1.5X – 2.0X the diameter of the objective lens. For commentary of moss heavenly our our bodies, a magnification of 75X – 100X could be completed with a 50mm purpose lens.
A lower magnification should be used for the commentary of the stars. This offers a much wider topic of view and simplifies aiming the telescope at the favored Item.
The utmost magnification should be used only for particularly transparent gadgets such for the reason that moon, which is relatively close to the Earth and truly glossy, permitting excellent choice of details at over the top magnification.
The 1.5X Erecting Eyepiece no longer only will building up the magnification of telescope however moreover suitable the process the image. As an example, a telescope, which has a magnification of 60X, will have a magnification of 90X while a 1.5X Erecting Eyepiece is used. Moreover, while the telescope is used to view landscope, the erecting eyepiece can straighten out the image.
Predominant tube x 1
H20mm eyepiece x 1
H6mm eyepiece x 1
1.5X Erecting Eyepiece x 1
90º Zenith replicate x 1
33cm top Aluminum tripod x 1
Lens subject material x 1
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 measurement: 360mm, Aperture: 50mm. Luminous: 0.139,Item lens center of attention:360mm. Theoretical choice: 2,800 arc seconds, which is the same as 1,000 meters could be noticed 1.357 cm apart gadgets.
ALTITUDE-AZIMUTH MOUNTING. The telescope is provided with an altitude-azimuth mounting, could be moved vertically (altitude) and horizontally (azimuth).
Top of the range optical glass lens, metal optical tube, aluminum table top tripod & 3 eyepieces
It is a top-powered telescope, suitable for access-stage newbie astronomers and children to find land & sky!
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