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Refractor telescopen

Refractors use a lens system to collect and bend, or refract, light into a cone shape that is focused in an eyepiece for you to view.

Refractor telescopen

Afbeelding Type Prijs


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Orion - GoScope II 70 - Travel Refractor


  • Grab-and-go day and night refractor telescope and lightweight aluminum tripod for young stargazers and families on the go
  • Rugged, specially designed backpack holds the 70mm telescope, tripod and all accessories
  • 400mm focal length telescope (f/5.7) excels at daytime birding use as well as viewing wildlife, scenery and casual nighttime observing of the Moon and bright planets
  • Includes 5x24 finder scope for easy aiming and two 1.25" telescope eyepieces (25mm and 10mm) for 16-power and 40-power views
  • Comes with the Orion MoonMap to help you learn about the cool lunar features you see

99,00 EUR

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In stock


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Orion - AstroView 90mm EQ Refractor Telescope


  • A powerful, high-quality refractor telescope at an amazing low price
  • 90mm (3.5") aperture and 910mm focal length for crisp views of deep-sky objects, the Moon, and planets
  • Included EQ-2 adjustable tripod and equatorial mount for manual slow-motion celestial tracking
  • Includes two Sirius Plossl 1.25" eyepieces (25mm and 10mm), 6x30 finder scope, smooth-adjusting 1.25" rack & pinion focuser, 90-degree mirror
  • 90° diagonal for comfortable nighttime performance, Starry Night astronomy software, and more
  • Can also be used for pleasing daytime terrestrial viewing with a correct-image diagonal (correct-image diagonal sold separately)

379,00 EUR

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In stock


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Sky Watcher - Startravel 80T


  • 80mm f/5 Achromatic Refractor Tube
  • An ideal instrument for the wide-field observation of Deep-Sky objects, including Nebulae, Star Fields, Star Clusters and Galaxies, the Moon, bright planets and Comets, as well for daytime terrestrial observations.
  • This wide-field, short-tube telescope is great as fixed aperture lenses for both Astrophotography and terrestrial photography. 
  • Its “fast" focal ratio makes it useful for capturing lunar and solar eclipses as well as nature photographs. 
  • Included: 6x30 finder, 2 Plössl eyepieces: 12.5mm (15.4x) and 26mm (32x) , 45° erecting prism,  2x barlowlens, tuberings.

149,00 EUR

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In stock


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Sky Watcher - Startravel 80 op AZ3 montering


  • Magnifications (with eyepieces supplied): x15.4, x30.8, x32 & x64
  • Highest Practical Power (Potential): x160
  • Objective Lens Diameter: 80mm
  • Telescope Focal Length: 400mm (f/5)
  • Eyepieces Supplied (1.25"): 12.5mm & 26mm Plossls
  • X2 Barlow Lens (1.25”)
  • Direct SLR Camera Connection
  • Red Dot Finder
  • 90º Star Diagonal (1.25"/31.7mm)
  • Multi-Coated Objective Lens
  • AZ3 Deluxe Alt-Azimuth Mount
  • Aluminium Tripod with Accessory Tray
  • 77% more Light Gathering than 60mm

225,00 EUR

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In stock


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Sky Watcher - Startravel 80 op EQ1 montering


  • Magnifications (with optics supplied): x16, x32, x40, x80
  • Highest Practical Power (Potential): x160
  • Objective Lens Diameter: 80mm
  • Telescope Focal Length: 400mm (f/5)
  • Eyepieces Supplied (1.25"): 10mm & 25mm
  • x2 Deluxe Barlow Lens 1.25" (with camera adaptor)
  • Direct SLR Camera Connection
  • 6x30 Finderscope
  • 1.25"/31.7mm Star Diagonal
  • Multi-Coated Objective Lens
  • EQ1 Equatorial Mount
  • Aluminium Tripod with Accessory Tray
  • 77% more Light Gathering than 60mm

219,00 EUR

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In stock


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Sky Watcher - Evostar 90 op AZ3 montering


  • Ideal for High Power Daytime Terrestrial Observations as well as Astronomical Use!!
  • Sky-Watcher EVOSTAR telescopes are classic two-element, air-spaced, achromatic refractors. They are outstanding, high-performance, high-resolution instruments manufactured to high standards of optical and mechanical precision.
  • With their long focal lengths and breathtaking, diffraction limited optical performance, they are ideal for the detailed high-power study of the Moon, Planetary Surfaces and other objects in our solar system, giving crisp contrasty images.
  • The intuitive and easy to use AZ3 Alt-Azimuth mount provides excellent stability and precise control, via its slow motion cables, on both the horizontal (azimuth) and vertical (altitude) axes.

  • Diameter lens: 90 mm
  • Brandpuntsafstand: 900 mm -  f/10.0
  • Alt-Azimutale montering AZ-3 met fijnregeling en verstelbaar statief  
  • Oculairs: Plössl 10 en 25 mm  
  • Vergroting met meegeleverde oculairen: 36x en 90x
  • Zoeker 6x30 
  • 45° Correct Image prisma voor een natuurgetrouwe oriëntatie van het beeld.  
  • Waarborg: 2 jaar


240,00 EUR

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Sky Watcher - Startravel 102 op AZ3


102mm  f/4.9  Wide Field Refractor telescoop   

  • Magnifications (with eyepieces supplied): x20 & x50
  • Highest Practical Power (Potential): x204
  • Objective Lens Diameter: 102mm
  • Telescope Focal Length: 500mm (f/4.9)
  • Eyepieces Supplied (1.25"): 10mm & 25mm
  • Direct SLR Camera Connection
  • 8x40 Finder RA Finder 90° (Photo shows Red Dot Finder)   
  • 45º Erect Image Diagonal 1.25"
  • Multi-Coated Objective Lens
  • AZ3 Deluxe Alt-Azimuth Mount
  • Aluminium Tripod with Accessory Tray
  • 62.5% more Light Gathering than 80mm

359,00 EUR

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In stock


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Sky Watcher - Startravel 120 op AZ3 montering


120mm f/5 Wide Field Refractor telescoop  

  • Magnifications (with eyepieces supplied): x24 & x60
  • Highest Practical Power (Potential): x240
  • Objective Lens Diameter: 120mm
  • Telescope Focal Length: 600mm (f/5)
  • Eyepieces Supplied (1.25"): 10mm & 25mm
  • Direct SLR Camera Connection
  • Red Dot Finder
  • Dual-Fit 1.25"/2" Focuser
  • 45º Erect Image Diagonal 1.25"/31.7mm
  • Multi-Coated Objective Lens
  • AZ3 Deluxe Alt-Azimuth Mount
  • Aluminium Tripod with Accessory Tray
  • 38% more Light Gathering than 102mm
 

420,00 EUR

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OPTIEK VAN GROOTVEN B.V.B.A.
Opticien-Optometrist 
Kapellestraat 24
2630 Aartselaar - 03 887 73 93 of  0471 68 41 83
info@grootven.be
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