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Sky-Watcher Evostar 72ED DS-Pro OTA with 0.85x Reducer/Flattener

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KD 209.00

72MM (2.83”) F/5.8 ED APOCHROMATIC REFRACTOR TELESCOPE - Compact and Portable Optical Tube for Affordable Astrophotography and Visual Astronomy


This high-end Evostar-72ED features a doublet objective lens with one Extra-Low Dispersion (ED) glass element. 

Each air-to-glass surface has multiple anti-reflection coatings applied to ensure optimum light transmission, approaching 99.5%! 

Sky-Watcher proudly claim their proprietary 'Metallic High-Transmission Coatings' (MHC) are the finest photon anti-rejection coatings in their class. 

An optically-matched 0.85x reducer is available for imaging at f4.9! 

(Please note the Evostar-72ED Apo has a different objective lens glass combination to the Evostar-80ED/100ED/120ED models). 

  • EXPERTLY MATCHED GLASS: The EvoStar series features a matched doublet objective including one synthetic fluorite element, providing excellent color correction for visual and photographic uses.
  • OUTSTANDING COLOR CORRECTION: Using the finest quality glass and proprietary Metallic High-Transmission Coatings (MHTC), EvoStar refractors produce tack sharp images with accurate color and minimal aberrations.
  • PORTABLE TRAVEL SIZE: Using a compact design, this refractor is easy to transport and lightweight to support, making it the perfect travel companion.
  • EVOLVES WITH SKILL: No need to replace this telescope as your skill set evolves. Whether you’re a seasoned astrophotographer or a budding novice, EvoStar refractors are versatile enough to use as your primary optical tube as your skill set improves.
  • 10:1 DUAL-SPEED FOCUSER: No matter the eyepiece or camera, finding focus is a breeze with this 10:1 dual-speed Crayford-style focuser.
  • EVERYTHING YOU NEED: The EvoStar 72 comes complete with an aluminum case, tube rings, and a Vixen-style dovetail.


Sky-Watcher 0.85x Reducer/Flattener for EvoStar 72ED

  • Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended
  • 55mm back focus
  • Drops f/ratio from native f/5.8 (420mm) to f/4.93 (355mm)
  • Reduces exposure time by 38% compared to native f/5.8
  • 5.8 x 3.87-degree field of view when used with a full frame camera
  • 3.79 x 2.53-degree field of view when used with APS-C crop sensor 
  • Includes thread-on adapter to mount reducer to Evostar 72ED focuser
  • For Astrophotography/Astroimaging
  • Virtually Eliminate Spherical Aberration
  • Shortens Focal Ratio from f/5.8 to f/4.9
  • Reduces Exposure Times by 38%
  • Use with APS-C and Full Frame Cameras
  • 55mm Back Focus
Designed specifically for their EvoStar 72ED f/5.8 refractor guidescope, the Sky-Watcher 0.85x Focal Reducer/Flattener is an indispensable dual-purpose accessory that allows you to use it for astrophotography and astroimaging. The field flattener corrects the inherent spherical aberration of curved lenses which, if left uncorrected,
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  • 216x Highest Practical Power (Potential)
  • 72mm Objective Lens Diameter
  • 420mm (f/5.8) Focal Length
  • Dual-Speed 2” Crayford Focuser 11:1 ratio (Backlash-Free)
  • Multi-Coated Objective Lens 
  • Sky-Watcher “Metallic 99.5% High-Transmission Coatings” (MHC) on all air to glass surfaces
  • Standard Sky-Watcher / Vixen Style Finderscope Shoe
  • Tube Rings & 45mm Dovetail Bar (with 1/4-20 tripod threads)
  • Removable Dewshield
  • Weight 1955g
  • Length 42cm
  • Aluminium Carrying Case (with compartments for additional accessories) - Approximately 28x52x17cm.
  • Supplied without Eyepiece, Finderscope and 2" Star Diagonal

Field of View Simulator

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انت تقيم:Sky-Watcher Evostar 72ED DS-Pro OTA with 0.85x Reducer/Flattener
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Evostar 72ED Apo Refractor

KD 209.00