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Sky-Watcher Esprit 120 mm ED APO Triplet Refractor - S11420

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SKU: SKY-S11420

What We Like About the Sky-Watcher 120mm Esprit Refractor

  • The 120mm air-spaced ED APO Triplet optics, made of FPL-53 ED and Schott BK-7 glass, and coupled with multi-layers of a high transmission coating, yield sharp, high contrast views with no extraneous color.

  • A thread-on doublet field flattener is included in the Sky-Watcher 120mm Esprit Refractor package, providing a flat field from edge-to-edge.

  • A good focuser is imperative when imaging, and the SW Esprit 120mm comes with a 3" linear power focuser with M74x1 threads and micro-focusing capabilities.

  • The dew shield on the Esprit 120 retracts, making the length 7" shorter for storage and travel.

  • A nice selection of accessories comes with this Esprit, including a 2" dielectric diagonal, an 8 x 50 erect-image finder, a Canon M48 camera adapter, tube rings, and an aluminum case. Add a mount (the rings have a Losmandy- style dovetail bar) and a few eyepieces, and you're good to go.

More About Sky-Watcher Esprit ED Triplet APO Refractors

Designed with 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, made of high quality Schott BK-7 and FPL-53 ED glass, false color is completely eliminated, yielding exceptional contrast and sharpness. Knife-edge baffles in the optical tube increase contrast even further, and 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, a 2" star diagonal, a 2-element thread-on field flattener, and a camera adapter as well as a D-style dovetail and padded case.

Sky-Watcher USA 120mm ED APO Triplet Esprit Refractor Specifications

  • Optical Design: Apochromatic Refractor

  • Aperture: 120 mm (4.7")

  • Focal Length: 840 mm

  • Focal Ratio: f/7

  • Highest Practical Power: 240X

  • Coatings: Fully multi-coated

  • Field Flattener: Thread-on doublet

  • Focuser: 3.4" linear power w/micro focus

  • Focuser Drawtube Thread: M74x1

  • Diagonal: 2" with dielectric coatings

  • Finderscope: 9x50 RA erect-image

  • Camera Adapter: M48 Canon EOS

  • Tube Ring: Includes D style dovetail bar

  • Dew Shield: Retractable Case: Aluminum foam lined

  • Image Circle: 44mm

  • OTA Weight: 22 lb.