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Refractor
Optical design
60
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
900
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 72335
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922039787
Package size (LxWxH) 106x34x23 cm
Optical design refractor
Specifications
Product ID 72335
Brand Bresser GmbH, Germany
Warranty 2 years
EAN 4007922039787
Package size (LxWxH) 106x34x23 cm
Optical design refractor
Optical scheme achromat
Objective lens diameter (aperture), mm 60
Focal length, mm 900
Lowest practical power, x 45
Highest practical power, x 338
Aperture ratio f/15
Resolution threshold, arcseconds 2.3
Eyepieces 4mm (225x), 12.5mm (72x), 20mm (45x)
Eyepiece barrel diameter, in 1.25
Finderscope optical, 5x24
Tripod aluminum
Tripod height (adjustable), mm adjustable
Telescope control manual
Mount equatorial
Optical tube material metal
User level beginners
Assembly and installation difficulty level easy
Observed object planets of the Solar System, terrestrial objects