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Newton's telescope. Primary mirror diameter (aperture): 203mm. Focal length: 1218mm

Reflector
Optical design
203
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) that the telescope uses to collect light
1218
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 72874
Brand Bresser GmbH, Germany
Warranty 2
EAN 4007922028415
Package size (LxWxH) 39x126x55
Shipping Weight 29
Description

Bresser Messier Dobsonian Telescope is a real breakthrough. This powerful Newtonian telescope gathers a lot of light due to its large 203 mm (8") optical tube diameter. You can explore numerous celestial objects, including the Moon and the planets as well as the deep-sky objects. The telescope features parabolic primary mirror made of H-PZ33 low expansion glass. Forget about vignetting due to its Hexafoc focuser with a 65 mm (2.5") diameter. Large widefield eyepieces are supported by the big altitude wheels that easily carry heavy eyepieces. You only need to move the tube in its tube rings and balance the telescope within seconds. Moreover, these large wheels provide smooth and precise movement even at high magnifications.

This telescope system is versatile: if you need to use this telescope for astrophotography, you can remove the altitude wheels from the tube rings, attach a dovetail, and it is ready to go. Moreover, the focuser handles even heavy cameras tilt and shifting-free. Assemble and disassemble this telescope easily and quickly: the parts of the rocker box are connected with the standard metal furniture fasteners. That is practical for compact storage or transportation of the telescope.

Features:

  • Primary mirror diameter: 203 mm
  • Focal length: 1218 mm
  • 2.5" HEXAFOC focus
  • Primary mirror made of special-purpose glass with little thermal expansion
  • Shifting-free focusing, even with heavy accessories
  • Easy to move the tube
  • Dismountable rocker box
  • Optics can be attached to other mounts
  • Differently sized adjusting- and lock-screws

The kit includes:

  • Newtonian reflector
  • LED viewfinder
  • 25 mm Super Plössl eyepiece (Ø 31.7 mm/1.25")
  • 1 extension shell 37.5 mm for 2.5" Hexafoc
  • 1 eyepiece adapter Ø 31.7 to 50.8 mm
  • 2 tube clamps
  • 2 altitude wheels
  • 1 rockerbox with 2 ground boards and assembly material
Specifications
Product ID 72874
Brand Bresser GmbH, Germany
Warranty 2
EAN 4007922028415
Package size (LxWxH) 39x126x55
Shipping Weight 29
Optical design reflector
Optical scheme Newtonian
Primary mirror diameter (aperture), mm 203
Secondary mirror diameter, mm 57
Focal length, mm 1218
Highest practical power, x 400
Aperture ratio f/6
Resolution threshold, arcseconds 0.6
Finderscope red dot
Mount Dobsonian
Optical tube weight, kg 11.5