Sky-Watcher 80mm Esprit ED Triplet APO Refractor

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Sky-Watcher 80mm Esprit ED Triplet APO Refractor
Item # SW-S11400
4 Questions(s)

Drop Ship

  • This 80mm Esprit ED Triplet APO Refractor was designed by Sky-Watcher with astro-imagers in mind! With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness.
  • The 2.7" rack & pinion focuser on this quality Esprit telescope is as solid as they come, and sports micro focusing abilities. This focuser can handle a multi-part imaging system just fine, with no image shift!
  • Accessories for the Sky-Watcher 80mm ED Triplet APO Refractor include a 2" dielectric diagonal, a 9X50 erect-image finder, tube rings with a Vixen-style dovetail, and even an aluminum case with interior foam lining.


Sky-Watcher Esprit ED APO Triplet Refractors...

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 today's amazing CCD cameras. 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 33mm image circle, and you have about 75mm of back focus for plenty of imaging accessories. The dew shield, when attached, will protect the optics from dew and help increase contrast by blocking stray light that might otherwise strike the glass. However, the shield is removable 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 2.7" rack & 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" accessories, and a 2" to 1.25" 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" dielectric diagonal, a 9 x 50 RA erect-image finderscope, a Canon camera adapter, tube rings with a CG-5 ("V" style) dovetail bar, and an aluminum foam-lined case.

Additional Information

Additional Information

SKU SW-S11400
UPC Code 50234114004
Manufacturer Sky-Watcher
Telescope Series Sky-Watcher Esprit
Optical Design Refractor - Apochromatic
Mount Type None - Optical Tube Only
Telescope Aperture 80mm(3.15")
Telescope Focal Length 400mm
Telescope Focal Ratio f/5
Highest Useful Magnification 120x
Optical Coatings Fully Multi-Coated
Dew Shield Included? Yes
Length of Optical Tube 17.375" with Dew Shield in Place
Optical Tube Weight 8.8lbs.
Tube Color or Finish Gloss White
Finder Included 9 x 50 Optical Finder
Alignment Procedure N/A
Tripod Type Included None, Sold Separately
Included Items

Included Items

  • Sky-Watcher 80mm Esprit ED Triplet APO Refractor
  • Thread-on Field Flattener
  • 2.7" Rack & Pinion Microfocuser
  • 2.7" to 2" Thread on Adapter
  • 2" to 1.25" Adapter
  • 2" Diagonal
  • Canon Camera Adapter
  • Tube Rings with "V" Series Dovetail Bar
  • Aluminum Case
Questions & Answers

Product Questions

I see the Vixen-style dovetail. However, is that dovetail threaded to allow mounting a Losmandy-style dovetail or dovetail plate adapters?
I'll be connecting a Canon DSLR to this telescope. Which type of Filter should I use when doing this the 1.25" or 2"?
The included field flattener does not reduce the focal length, correct?
Hi friends
Is there any focal reducer for this telescope? And if there is, the application of this accessory affects the performance of the field flattener?

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