Bresser Sirius 70/900 AZ Telescope with smartphone camera adapter – Madeira Optics

Bresser Sirius 70/900 AZ Telescope with smartphone camera adapter

  • $149.77
    Unit price per 
Tax included. Shipping calculated at checkout.

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 Sirius and from a distance of 600 million km the main cloud bands on the planet Jupiter get visible.

With the included smartphone camera adapter you can take pictures of your best observations right through the telescope.


  • Telescope for night and solar observation
  • MgF2-coated optics
  • Magnification with supplied accessories: 45x, 135x, 225x, 675x (max. suggested: 140x)
  • Focal distance, aperture ratio: 900mm, f/12.9
  • Azimuthal mounting
  • Eyepiece diameter: 31.7mm (1.25”)

The kit includes:

  • Sirius refractor
  • Altazimuth mount
  • Aluminium tripod with accessory tray
  • Aperture solar-filter
  • Eyepieces: 4mm, 20mm
  • 3x Barlow lens
  • Diagonal mirror
  • Smartphone camera adapter
  • Software & moon map via download
Brand Bresser GmbH, Germany
Warranty, years 2
Package size (LxWxH), cm 93x30.5x18
Shipping Weight, kg 4.7
Optical design refractor
Optical scheme achromat
Optics coating magnesium fluoride
Primary mirror diameter (aperture), mm 70.0
Focal length, mm 900
Magnification, x 45—675
Aperture ratio f/12.9
Resolution threshold, arcseconds 1.9
Eyepieces 4mm, 20mm
Eyepiece barrel diameter, in 1.25
Barlow lens 3x
Solar filter included True
Tripod aluminum
Tripod height (adjustable), mm adjustable
Accessory tray True
Mount alt-azimuth
User level beginners
Observed object terrestrial objects, planets of the Solar System
Extended kit True