Sky-Watcher Esprit 150mm ED APO Triplet Refractor Optical Tube - S11430

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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.

 

 

  • 150 mm apochromatic 3-element refractor
  • 1050 mm (f/7)
  • Fully multi-coated
  • Thread-on field flattener
  • 3.4" focuser w/micro focus
  • Back Focus - 100mm
  • Image Circle - 43mm
  • Lens Glass - FPL-53 ED and Schott Glass
  • Focuser Travel - 87mm
  • 2" Diagonal with dielectric coatings
  • 9x50 RA erect-image finderscope
  • Canon camera adapter
  • Tube rings with CGE style dovetail bar
  • Aluminum foam lined case
  • Weight 32 lbs.
  • Length - 40.5 / 36.9 inches