SkyWatcher Esprit 120 ED APO Refractor (S11420)
$4,165.00
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SkyWatcher Esprit 120 ED APO Refractor (S11420)
$4,165.00
120mm Aperture
Superior Light Gathering Power
ED Triplet APO
Zero False Color Optics
f/7 Focal Ratio
Optimized Speed for Astrophotography
Dual-Speed Focuser
Rock Solid Helinear Track
Field Flattener
Edge to Edge Flat Imaging
Deluxe Package
Includes Case and Accessories
Astrophotography Excellence UnlockedPremium Triplet Optics for Celestial Imaging
The Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope delivers world-class optical performance engineered for demanding astrophotographers. Featuring an air-spaced triplet refractor design with extra-low dispersion FPL-53 ED glass, this high-end optical tube assembly eliminates chromatic aberration for razor-sharp, high-contrast imagery. Equipped with a dedicated field corrector and robust focus system, this astrophotography telescope offers uncompromising imaging performance at an exceptional value.
Optical Mastery Under the StarsPrecision Refractor Performance for Deep-Sky Imaging
Designed with the discerning astrophotographer in mind, the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope stands as a flagship optical tube assembly in premium celestial imaging. Its sophisticated three-element air-spaced objective lens system utilizes premium BK7 and FPL-53 ED glass, completely eliminating color fringing and yielding breathtaking sharpness across your target fields. To complement the optics, the included 2-element field flattener ensures flat edge-to-edge performance across full-frame camera sensors.
For absolute mechanical reliability, Sky-Watcher incorporates their exclusive 3.4-inch Helinear Track dual-speed rack-and-pinion focuser. This rock-solid, high-capacity focus system operates with zero image shift, supporting heavy imaging trains with ease. Outfitted with mounting rings, a D-style dovetail bar, an 8x50 RACI finderscope, a 2-inch dielectric star diagonal, camera adapter, and a heavy-duty padded hard case, the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope provides every essential required to capture brilliant deep-sky astrophotos.
Technical SpecificationsComplete Optical and Hardware Details
Optical Design
ED Triplet Refractor
Primary Aperture
120mm
Focal Length
840mm
Focal Ratio
f/7
Glass Type
BK7 / FPL-53 ED
Lens Coatings
Fully Multi-Coated
Focuser
3.4" Dual-Speed Rack & Pinion Helinear Track
OTA Weight
22 lbs with accessories
OTA Length Retracted
27.4 in
OTA Length Extended
31.5 in
OTA Outer Diameter
6.875 in
Dawes Limit
0.97 arcsec
Rayleigh Limit
1.166 arcsec
Limiting Magnitude
12.9
Minimum Magnification
17x
Maximum Magnification
236x
Included Finder
8x50 RACI
Included Diagonal
2" Dielectric (mirror)
Mounting Accessories
Tube Rings with D-Style Dovetail Rail
Field Corrector
Included 2-Element Field Flattener
Carrying Case
Included Padded Hard Case
Key Highlights & PerformanceEngineered for Superior Deep-Sky Imaging
Apochromatic OpticsAir-spaced ED triplet design with FPL-53 glass eliminates color fringing
Field Flattener IncludedDedicated 2-element corrector guarantees a flat field across full sensor frames
Helinear Track FocuserPremium 3.4-inch dual-speed focuser offers rock-solid stability with zero image shift
Complete Accessory SuiteComes with an 8x50 RACI finder, 2-inch dielectric diagonal, and camera adapter
Heavy-Duty Mount SystemIncludes precision mounting rings and a sturdy D-style dovetail rail
Rugged Transport CaseIncludes a custom padded aluminum hard case for safe storage and field travel
Frequently Asked QuestionsEverything you need to know
What mount is required for the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope?
The Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope includes a standard D-style dovetail bar and weighs 22 lbs with accessories. It requires a medium-to-heavy-duty computer-controlled equatorial mount rated for at least 35-40 lbs of payload capacity to support astrophotography imaging gear.
Does the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope include a field flattener?
Yes, the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope comes complete with a dedicated 2-element field flattener, designed specifically to deliver pinpoint stars across the field of view.
Can the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope be used for visual observing?
Absolutely. While optimized for imaging, the incredible color correction, contrast, and resolution of the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope deliver stunning visual observations of planetary details, the moon, and deep-sky objects when paired with high-quality 1.25-inch or 2-inch eyepieces.
What accessories come standard with the Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope?
The Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope includes mounting rings, a D-style dovetail rail, an 8x50 RACI finderscope, a 2-inch dielectric star diagonal, a camera adapter, a 2-element field corrector, and a padded aluminum transport case.
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