Dobsonians give the best value for money of any telescope. You get a large aperture at an affordable price. The design is simple and solid. It consists of a solid tube and a wooden box-like mount. Setting up is as simple as putting the mount on the ground, slotting in the tube and attaching the springs. You navigate the night sky by moving the scope left and right, up and down, by hand. This is simple and intuitive for beginners when compared with more complicated mounts.
The Astronz-GSO 8" Dobsonian has a 8 inch (200mm) primary mirror with a focal length of 1,200mm and a focal ratio of f/6. It gives clear, bright wide-field views of deep sky objects such as galaxies and nebulae. An 8 inch telescope will also show stunning views of the planets and the Moon.
GSO mirrors are made from optical quality BK7 glass and are limited only by diffraction, which means they achieve the theoretical maximum resolution possible for the size of the mirror. They are machined and polished to better than 1/12 wavelength, sometimes 1/16 wavelength, which is considerably better than the industry norm.
It comes with several extras, including a Crayford focuser for extra smooth focussing with no spring-back, an 8x50 finder scope and two eyepieces. It is ready to use out of the box.
People who want a no frills easy to use scope for visual viewing of planets, the Moon and deep sky objects.
What's in the box?
8" (200mm) f/6 Newtonian optical tube assembly
9mm Plossl 1.25" eyepiece
30mm Superview 2" eyepiece
2" 10:1 Crayford focuser with self-centering adaptor for 1.25" eyepieces
8x50 finder scope
Dobsonian base (assembly required)
||8" (200mm) BK7 glass with surface quality better than 1/12 wave RMS
|Highest practical magnifcation
||8x50mm fully coated achromatic finder
||Crayford 2" focuser
||9mm Plossl 1.25" and 30mm Superview 2"
||Elevation brake tension system. Azimuth roller bearings.
|Weight of tube
|Weight of tube plus base