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The Sky-Watcher 80 is an excellent moderate-cost, wide-field refractor for astrophotography.  The build quality is excellent and includes a robust and smooth focuser.  With the included thread-on field flattener, this scope is an excellent option for any astrophotographer.
This telescope does not come with a mount.
Unsurpassed Performance 
Esprit three-element air spaced optics deliver images equal to scopes costing thousands of dollars more
Two-element Field Corrector 
All Sky-Watcher USA Esprits include a two- element field corrector that guarantees a flat field across the entire imaging plane
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.
 
Model | 80 mm |
Optical design | Apochromatic refractor |
Focal length | 400 mm |
F-ratio | 5 |
Back focus | 75 mm |
Image circle | 33 mm |
Lens elements | 3 |
Lens glass | FPL-53 ED and Schott glass |
Focuser | 2.7 inch rack-and-pinion focuser |
Focuser travel | 60 mm |
Removable field corrector | Yes |
Finderscope | 9 x 50 right angle, correct image |
Mount type | V-style dovetail |
Length (extended/retracted) | 17.4 in/17.4 in |
Outer diameter | 4.875 in |
Tube weight (pounds) | 8.8 |