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Achromatic refractor. Aperture: 70mm. Focal length: 900mm

Refractor
Optical design
70
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) 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 76337
Brand Sky-Watcher
EAN 0753215775682
Package size (LxWxH) 110x31x25 cm
Shipping Weight 10.78 kg
Optical design refractor
Description

With its 70mm aperture, this telescope gathers 100x more light than the naked eye and significantly more light than the slightly smaller 60mm aperture typical of a beginner's telescope. This means it also has a higher resolution and, with its maximum magnification of 140x, can show you detail on the large planets Saturn, Jupiter, and Mars. The cratered landscape of the Moon is also well worth observing, and you can watch this changing with the different lighting conditions arising from the different phases. Fascinating nature watching during daylight hours is also made possible by adding an erecting lens or an Amici prism. Focusing is carried out by means of an adjustment knob on the rack and pinion focuser. This allows the focusing sharpness to be always precisely set and for it to remain fixed during observing.

This is also a useful acquisition for advanced astronomers or when changing to a more powerful system as the optics are well suited for use as a guide scope which can be mounted on top of a larger telescope and used to take pictures or to guide with.

The EQ1 parallactic mount provides the possibility of accurately aligning the optics to the pole star. The correct polar elevation can be set for any observing site or geographical latitude. Slow motions on the right ascension and declination axes allow objects to be precisely adjusted in the field of view and followed, with a counterweight provided for precise counterbalancing of the optics.

The free-standing tripod is extendable and has a tray, providing space for eyepieces and other accessories.

The kit includes:

  • Telescope optical tube
  • 10mm eyepiece, 1.25"
  • 25mm eyepiece, 1.25"
  • 90° diagonal mirror, 1.25"
  • 2x Barlow lens, 1.25"
  • 5x24 optical finderscope
  • Equatorial mount EQ1
  • Slow-motion control knobs
  • Counterweight
  • Counterweight bar
  • Aluminum tripod
  • Accessory tray
  • User manual and warranty
Specifications
Product ID 76337
Brand Sky-Watcher
EAN 0753215775682
Package size (LxWxH) 110x31x25 cm
Shipping Weight 10.78 kg
Optical design refractor
Optical scheme achromat
Optics coating anti-reflective
Primary mirror diameter (aperture), mm 70
Focal length, mm 900
Highest practical power, x 140
Aperture ratio f/12.8
Resolution threshold, arcseconds 1.64
Limiting stellar magnitude 11
Eyepieces SUPER 10mm (90x), SUPER 25mm (36x)
Eyepiece barrel diameter, in 1.25
Barlow lens 2x
Finderscope optical, 5x24
Focuser rack & pinion
Tripod aluminum
Tripod height (adjustable), mm adjustable
Accessory tray
Telescope control manual
Mount equatorial, EQ1
Maximum payload, kg 3
Optical tube material aluminum
User level beginners
Observed object planets of the Solar System, terrestrial objects
Extended kit
Reviews
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Levenhuk Telescope Assembly Guide (14.12.2019)
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A quick guide for novice astronomers (16.12.2019)
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A telescope: how to start observing (16.12.2019)
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Frequently Asked Questions – Telescopes (20.04.2020)
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First Steps in Astronomy Made Easy! (18.05.2020)
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How to choose a telescope (20.05.2020)
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A short guide to refractor telescopes: choose your equipment wisely (20.05.2020)
Learn everything you need to know about refractor telescopes to make the right choice
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