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Sky-Watcher Esprit 100 mm ED APO Triplet Refractor - S11410
What We Like About the Sky-Watcher 100mm Esprit Refractor
- The 100mm air-spaced ED APO Triplet optics, made of FPL-53 ED and Schott BK-7 glass, and coupled with multi-layers of a high transmission coating, yield sharp, high contrast views with no extraneous color.
- A thread-on doublet field flattener is included in the Sky-Watcher 100mm Esprit Refractor package, providing a flat field from edge-to-edge.
- A good focuser is imperative when imaging, and the SW Esprit 100mm comes with a 2.7" linear power focuser with micro-focusing capabilities.
- The dew shield on the Esprit 100 retracts, making the length 7" shorter for storage and travel.
- A nice selection of accessories comes with this Esprit, including a 2" dielectric diagonal, a 9 x 50 erect-image finder, a Canon camera adapter, tube brings, and an 18.5" x 10.5" x 22.5" aluminum case. Add a mount (the rings have a Losmandy- style dovetail bar) and a few eyepieces, and you're good to go.
More About Sky-Watcher Esprit ED Triplet APO Refractors
Designed with 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, made of high quality Schott BK-7 and FPL-53 ED glass, false color is completely eliminated, yielding exceptional contrast and sharpness. Knife-edge baffles in the optical tube increase contrast even further, and 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, a 2" star diagonal, a 2-element thread-on field flattener, and a camera adapter as well as a D-style dovetail and padded case.
Sky-Watcher USA 100mm ED APO Triplet Esprit Refractor Specifications
- Optical Design: Apochromatic Refractor
- Aperture: 100 mm (3.94")
- Focal Length: 550 mm
- Focal Ratio: f/5.5
- Highest Practical Power: 150X
- Coatings: Fully multi-coated
- Field Flattener: Thread-on doublet
- Focuser: 2.7" linear power w/micro focus
- Diagonal: 2" with dielectric coatings
- Finderscope: 9x50 RA erect-image
- Camera Adapter: M48 Canon EOS
- Tube Ring: Includes D style dovetail bar
- Dew Shield: Retractable Case: Aluminum foam-lined. 18.5" x 10.5" x 22.5"
- Image Circle: 40mm
- OTA Weight: 16 lb.
- OTA Length: 24.5" Extended and 18.3" Retracted
- Back focus: 68.819mm