SkyWatcher 120mm ESPRIT ED Triplet APO Refractor Telescope

Designed with the discerning astrophotographer in mind, Sky-Watcher’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With the Esprit’s three-element, air-spaced objective lens design, false color is virtually eliminated, yielding exceptional contrast and sharpness. Each element is fully multi-coated with Sky-Watcher’s proprietary Metallic high-transmission Coatings™ (MHTC)™, producing a transmission rate that rivals any refractor on the market. In addition to superb optics, all Esprits feature exclusive dual-speed, Helinear track focusers, which provide smooth, rock-solid focusing with zero image shift. Using a captain’s wheel design all focusers can be rotated, giving astrophotographers flexibility when framing their image. As is customary, Sky-Watcher supplies everything you need to get out under the stars, including a 2-element field corrector, which guarantees a flat field across the entire imaging plane. All Esprit refractors also come with an 8×50 right-angle finderscope, 2-inch star diagonal, M48 camera adapter, mounting hardware, and padded case. Optical Info Optical Design ED Triplet Refractor Lens Coatings Fully Multi-Coated Glass Type BK7 (2)/FPL-53(ED) Primary Aperture (mm) 120 F/Ratio 7 Focal Length (mm) 840 Observational Info Dawes Limit 0.97 Rayleigh Limit 1.16 Limiting Mag. 12.9 Minimum Magnification 17 Maximum Magnification 236 Light Gathering (compared to next size down) 44% General Info Focuser 3.4” Dual Speed R&P OTA Length (Retract/Ext.) 27.4”/31.5” OTA Outer Diameter 6.875” OTA Weight (with accessories) 22 Accessories Included Finder 8×50 RACI Included Diagonal 2” Dielectric Mounting Accessories Rings/D-Rail Included Eyepieces None Included Case Yes Corrector Yes