Sky-Watcher Esprit 120ED Triplet Super APO Refractor Telescope OTA (S11420)
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 colour 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 8x50 right angle finderscope, 2-inch star diagonal, M48 camera adapter, mounting hardware, and padded case.
- Triplet super-apochromatic design
- Three-element, air-spaced optical assembly virtually eliminates false color
- 120mm aperture, 840 focal length, f/7 focal ratio
- 3.4-inch dual-speed rack-and-pinion, Helinear track focuser
- Rolled steel optical tube with white, glossy finish
What's in the Box
- Field flattener
- Tube rings
- D-style dovetail
- 8x50 right-angle finderscope
- M48 camera adapter
- 2-inch dielectric diagonal
- Padded hard case
|Optical Design||ED Triplet Refractor|
|Lens Coatings||Fully Multi-Coated|
|Glass Type||BK7 (2)/FPL-53(ED)|
|Primary Aperture (mm)||120|
|Focal Length (mm)||840|
|Light Gathering (compared to next size down)||44%|
|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|
|Included Finder||8x50 RACI|
|Included Diagonal||2" Dielectric|