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.
- Optical Design: Refractor
- Field Flattener: Included, thread-on
- Aperture: 80 mm (3.15 in)
- Focal Length: 400 mm
- Focal Ratio: f/5
- Highest Useful Magnification: 120 x
- Optical Coatings: Fully multi-coated