Sky-Watcher Quattro-10CF 250 Parabolic Dual-Speed Imaging Newtonian OTA

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£899.00

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Sky-Watcher Quattro-10CF 250mm (10") f/1000 Parabolic Dual-Speed Imaging Newtonian Carbon Fibre Optical Tube Assembly. The new Sky-Watcher Quattro series with their fast f/4 focal ratios, have been specially designed for high quality astrophotography with short exposure times. They are of course also fine telescopes for visual observations. Their tube interiors have knife-edge ray traced baffles to ensure no light is lost, and stray light is kept out! Its paraboloidal primary mirror is made of low thermal expansion, fast-cooling Pyrex glass.

Sky-Watcher Quattro-10CF 250 Features

Carbon Fibre Tube: Carbon fibre is a strong and lightweight material and has much better thermal stability compared to a steel tube. This is especially important for astro-photographers dealing with long exposure times. Imaging telescopes made of less thermally stable material can deviate from optimum focus after long time exposures. With a carbon fibre tube, it can remain in focus for a longer period of time and long exposure images will stay clear and in focus.

2" Dual-Speed Linear Power Focuser: The new linear power focuser utilises 4 precision ball bearings to support the drawtube and provide great stability and zero image shift while supporting a heavy eyepiece or camera. Moving the drawtube by the roller rather than a rack and pinion ensures exceptionally smooth operation, great feel and precise adjustability. The dual-speed feature has a second focus knob that has a 10:1 speed reduction to provide the super-fine adjustments even the most demanding users can appreciate.

Pyrex Mirrors: Both models feature paraboloidal primary mirrors made of low thermal expansion Pyrex glass resulting in substantially shorter cooling-down times.

  • Highest Practical Power (Potential) x508
  • Diameter of Primary Mirror 250mm
  • Telescope Focal Length 1000mm (f/4)
  • Note: Eyepieces NOT supplied
  • 9x50 Finderscope
  • Parabolic Primary Mirror (Pyrex)
  • 2" (50.8mm) Dual-Speed 10:1 Linear Power Focuser
  • Tube Rings & Dovetail Bar
  • 0.5mm Ultra-Thin Secondary Mirror Supports
  • 56% more Light-Gathering than 150mm

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Product Specification

Diagonal None
Diameter (mm) 254
Eyepiece 1 Supplied without Eyepieces
Finderscope 9x50 Finderscope
Focal Length (mm) 1000
Focal Ratio (f/) 4
Highest Practical Magnification (x) 508
Included Accessories 9x50 Finderscope, 2 Inch (50.8mm) Dual-Speed 10:1 Linear Power Focuser,Tube Rings & Dovetail Bar
Magnification with Supplied Eyepiece (x) Supplied without Eyepieces
Mount Type Optical Tube Assembly Only
Optical Design Parabolic Imaging Newtonian
Type Parabolic Newtonian Reflector
Manufacturer Link www.opticalvision.co.uk/astronomical_telescopes/sky-watcher/dual-speed_parabolic_telescopes/QUATTRO-10_DUAL-SPEED_F/4_PARABOLIC_IMAGING_NEWTONIANS
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Product Code: 1527792-wex Manufacturers Part Number: 10236 Got a question? Get it answered...