Sky-Watcher Esprit 120ED Triplet Super APO Refractor Telescope OTA (S11420)
S11420
Sky-Watcher Esprit 120ED Triplet Super APO Refractor Telescope OTA (S11420)
S11420
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Why we love the Sky-Watcher Esprit 120ED Triplet Super APO Refractor Telescope OTA (S11420)
Product Description
Designed with the discerning astrophotographer in mind, Sky-Watcher's top-of-the-line 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.
The Sky-Watcher Esprit 120 is a world class 5" refractor. It's a stunning instrument for deep sky imaging.
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.
What's in the Box
Specifications
| 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 | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/D-Rail |
| Included Eyepieces | None |
| Included Case | Yes |
| Corrector | Yes |
What can I see with a Sky-Watcher Esprit 120ED Triplet Super APO Refractor Telescope OTA (S11420)?
Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.
Jupiter with
25mm Eyepiece - 34x Magnification
(Sold Separately)
Jupiter with
10mm Eyepiece - 84x Magnification
Sold Separately
Jupiter with
5mm Eyepiece - 168x Magnification
Sold Separately
Moon with 25mm Eyepiece
34x Magnification
(Sold Separately)
Moon with 10mm Eyepiece
84x Magnification
Sold Separately
Moon with 5mm Eyepiece
168x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
23x Magnification
Sold Separately
Andromeda with 25mm Eyepiece
34x Magnification
(Sold Separately)
Andromeda with 10mm Eyepiece
84x Magnification
Sold Separately
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