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Achromatic refractor. Aperture: 70mm. Focal length: 700mm

Refractor
Optical design
70
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
700
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability
Future arrivals
25 November 2024
2

Product ID 72334
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922050850
Package size (LxWxH) 89x31x19 cm
Shipping Weight 4.5 kg
Description

When looking at the technical data, 70mm aperture may not look too impressive. During the observation the impact of the 36 % more light gathering power in respect to a 60mm refractor are easily visible: Details are seen more clearly in the Bresser Nano AR-70/700 AZ and from a distance of 600 million km the main cloud bands on the planet Jupiter get visible.

Do you want to capture what you see? With the included smartphone holder bracket you can use your smartphone to easily take colour pictures of celestial objects — like through a telephoto lens!

Main features:

  • MgF2-coated optics
  • Magnification with supplied accessories: 35x, 77x, (max. suggested: 140x)
  • Focal distance, aperture ratio: 700mm, f/10
  • azimuthal mounting
  • eyepiece diameter: 31.7mm (1.25")

The kit includes:

  • Messier refractor
  • Altazimuth mount
  • Aluminium tripod with accessory tray
  • Eyepieces: 9mm, 20mm
  • Red dot finder
  • Diagonal mirror 1,25" (31,7mm)
  • Smartphone camera adapter
  • Software & rotatable star-map
Specifications
Product ID 72334
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922050850
Package size (LxWxH) 89x31x19 cm
Shipping Weight 4.5 kg
Optical design refractor
Optical scheme achromat
Optics coating magnesium fluoride
Objective lens diameter (aperture), mm 70
Focal length, mm 700
Lowest practical power, x 35
Highest practical power, x 140
Aperture ratio f/10
Resolution threshold, arcseconds 1.97
Eyepieces 9mm (77x), 20mm (35x)
Eyepiece barrel diameter, in 1.25
Finderscope red dot
Tripod aluminum
Tripod height (adjustable), mm adjustable
Telescope control manual
Mount alt-azimuth
Power supply CR2032 battery (3V) – 1 pc.
Optical tube material aluminum
User level beginners, experienced users
Assembly and installation difficulty level easy
Observed object planets of the Solar System, terrestrial objects