Sky-Watcher Esprit 100 ED APO Refractor
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Sky-Watcher Esprit 100 ED APO Refractor

The Sky-Watcher Esprit 100 is a premium quality 100 mm f/5.5 triplet apochromatic refractor that is perfect for capturing wide field astronomy images. 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.

Quick Overview

  • 550 mm (f/5.5)
  • 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 CGE style dovetail bar
  • Aluminum foam lined case
  • 40mm image circle
  • OTA Weight: 16.3lbs.
  • OTA Length: 24.5" Extended and 17.3125" Retracted
  • Back focus: 68.819mm


Our price: $2499.00

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Telescope Type Apochromatic Refractor
Aperture (in.) 3.9 inches
Aperture (mm) 100 mm
Focal Ratio f/5.5
Focal Length 550 mm
Limiting Visual Magnitude 12.6
Focuser Size 2.7-inch
Finder 9 x 50 optical right angle
Star Diagonal 2-inch dielectric mirror
Optical Tube Weight 18 lbs.
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