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

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.

• 120 mm apochromatic 3-element refractor
• 840 mm (f/7)
• Fully multi-coated
• Thread-on field flattener
• Back Focus - 75mm
• Image Circle - 43mm
• Lens Glass - FPL-53 ED and Schott Glass
• Focuser Travel - 87mm
• 3.4" 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
• Weight 22 lbs.
• Length - 31.5 / 27.4 inches