Sky-Watcher ESPRIT-150ED Professional F/7 Super APO Triplet Refractor Telescope

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ED APO Triplet Refractor

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Sky-Watcher Professional ESPRIT 3-Element ED apochromatic refractors are instruments of the highest quality with optical performance rivalling or exceeding similar telescopes of even the most famous high-end telescope brands.

The ESPRIT Super Apo Triplets are designed for the most demanding astro-imagers, for use with the optional M48 field flattener, but are also fine telescopes for visual observations. The premium, superbly-corrected optical systems deliver high-contrast images full of detail and zero detectable colour fringing, even on the brightest of objects.


  • 3-Element Objective Lens
  • Focal Length 1050mm (one Ohara FPL-53 ED element)  
  • 2.7” CNC Machined 11:1 Dual-Speed Linear Power Focuser
  • Zero detectable Colour Fringing even on Bright Objects  
  • Metallic High-Transmission Lens Coatings  
  • Knife-edge Baffled Optical System  
  • High-precision Mechanical Components  
  • Aluminium OTA material (superior to plain carbon-fibre for this application)  
  • Fixed Dew Shield
  • OTA Weight 3.97kg (without accessories)  
  • 2.7” LPF with 2” and 1.25” eyepiece adaptors and indexed scale  
  • Zero focus-shift during focusing  
  • High Load Capacity  
  • The smooth focus motion and 11:1 fine focus wheel allows precision adjustment and critical focusing of eyepieces & cameras  


  • 2” Dielectric Star Diagonal
  • 28mm 2” LET Eyepiece
  • 9x50 Right-Angled Erect Image Finderscope
  • Tube Rings
  • Dovetail Mounting Bar

  • Optical DesignApochromatic Refractor
  • Diameter150mm
  • Focal Length1050mm
  • F/RatioF/7
  • Highest Practical Power300x
  • Finder Scope8x50 Right Angled Erect Image
  • Focuser Diameter3" Linear Power Focuser
  • Diagonal2" 90 deg. Dielectric Diagonal with 1.25" adapter
  • Eye PieceLET 2"-28
  • Tube Weight14.52 kg
  • Tube Dimensions15.3cmx95cm
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Review of Esprit-150ED by Astronomy Now Magazine
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