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Sky-Watcher USA - Esprit 80mm ED Triplet APO Refractor


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Manufactured by: Sky-Watcher USA


Sky-Watcher USA Esprit 80mm ED Triplet APO Refractor


Designed wtih the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more.

With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift.

All Sky-Watcher USA Esprit refractors come with a 9 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.



  • 80 mm apochromatic 3-element refractor
  • 400 mm (f/5)
  • Fully multi-coated
  • Thread-on field flattener
  • 2.7" focuser w/micro focus
  • 2" Diagonal with dielectric coatings
  • 9x50 RA erect-image finderscope
  • Canon camera adapter
  • Tube rings with CG5 style dovetail bar
  • Aluminum foam lined case
  • 33mm image circle
  • OTA Weight: 8.8lbs.
  • OTA Length: 17.375" (fixed dew shield)
  • Back focus: 75mm













Additional Information

Name Sky-Watcher USA - Esprit 80mm ED Triplet APO Refractor
Manufacturer Sky-Watcher USA
Model S11400
Manufacturer Part No S11400
Telescope Aperture 3.1" - 4"
Aperture 80 mm (3.15 in)
Focal Length 400 mm
Focal Ratio 5
Highest Useful Magnification 120 x
Optical Coatings Fully multi-coated
Optical Design Refractor