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Sky-Watcher Esprit 120ED APO Triplet


Sky-Watcher Esprit 120mm ED Triplet APO Refractor

Esprit 80ED, 100ED, 120ED and 150ED Super APO triplets have a doublet field flattener to get a flat field and minimize aberration and distortion.


  • Aperture: 119 mm or 4.7-inch.
  • Focal Ratio: f/7.
  • Highest magnification of 283x.
  • 9 x 50 Optical Finder included.
  • 43 mm Image Circle.



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The Sky-Watcher Esprit line of high-quality ED Triplet APO refractors will perform flawlessly whether you enjoy it as a visual instrument or use it as a giant lens to image the Universe with one of the amazing CCD cameras of today. The designers of this telescope line concentrated on the desires and requirements of the avid astro-imager, from a three-element apochromatic objective with included thread-on field flattener to the beefy oversized micro-focuser.

The air-spaced ED APO optics are fully multi-coated for extra clarity, contrast, and protection, and the two-element corrector, which comes standard with the Sky-Watcher Esprit, will ensure a flat field across the entire focal plane. This system produces a 43 mm image circle, and you have about 75 mm of back focus for plenty of imaging accessories.

The dew shield, when extended, will protect the optics from dew and help increase contrast by blocking stray light that might otherwise strike the glass. However, the shield is fully retractable when necessary in order to shorten your OTA for storage and travel

The Helinear Track Focusing System, a Sky-Watcher exclusive, is a rock-solid 3.4-inch rack and pinion focuser that will perform smoothly, without image shift, due to the extra support rail on the top of the drawtube. The micro focuser allows you to make course and fine adjustments to focus, and the knobs are easy to turn, even with cold hands or with gloves on. A thread-on step-down ring takes the opening down for 2-inch accessories, and a 2-inch to 1.25-inch adapter is included in the package. Accessories are a big part of any telescope system, and Sky-Watcher wants to make sure that you start out right. Included with every Esprit refractor is a 2-inch dielectric diagonal, a 9 x 50 RA erect-image finderscope and bracket, a Canon camera adapter, tube rings with a CGE D-style dovetail bar, and an aluminum foam-lined case.

Esprit 80ED, 100ED, 120ED and 150ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image. 

Main Features: 

- Premium optical materials 

- Short focal length and full frame corrected focal plane 

- Excellent field flatness 

- Precision linear power focuser is standard 

- Metallic high-transmission lens coatings 

- Light-baffled optical systems 

- Telescope tube attachment hardware

- Full-frame Corrected Focal Plane

- Zero detectable Colour Fringing even on Bright Objects

- Knife-edge Baffled Optical System


  • “I’m pleased to report that the Esprit 120 really performed!” 

  • “I compared its performance with high-end Officina Stellare and Astro-Physics 105mm and 130mm Apos employing similar premium glass. Even at high magnification with a 3mm eyepiece, star images appeared just as sharp,aberration-free and colourless as the best.  I was Impressed.”

  • “it exhibited none of the aberration oddities I’ve seen in some test telescopes, effects created by cold temperatures pinching optics.”

  • “…the Esprit 120’s performance matches the best in the business at a competitive price…”

  • “Sky-Watcher’s Esprit refractors become very attractive options for anyone looking for the best.”

Review on SkyNews by Alan Dyer ( www.skynews.ca | review)

Optical DesignApochromatic Refractor 
Optical Diameter120mm 
Focal Length840mm 
Highest Practical Power240x 
Faintest Steller Magnitude12.5 
Finder Scope8x50 Right Angled Erect Image 
Focuser Diameter3" Linear Power Focuser 
Diagnol2" 90 deg. Dielectric Diagonal with 1.25" adapter 
EyepiecesLET 2"-28mm 
Tube Weight9.61 kg 
Tube Dimensions12.5cmx75cm 
Shipping Weight26 kg 
Shipping Dimensions122x46x48 cm3 
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Sky-Watcher Esprit 120ED APO Triplet

KD 1,279.00