Skywatcher AP 150/1050 ESPRIT-150ED Professional OTA
A 150mm triplet refractor defines Skywatcher AP 150/1050 ESPRIT-150ED Professional OTA, combining a 1050mm focal length, f/7 optics, dedicated field flattener, 3.4-inch focuser, full-frame coverage, Losmandy mounting, finder, diagonal, adapter, and hard case.
- 150mm apochromatic triplet refractor
- 1050mm focal length, f/7.0 optics
- Dedicated two-element field flattener
- 3.4-inch dual-speed linear focuser
- Includes diagonal, finder, adapter, case
In Stock
Description
Capture flagship observatory-grade deep-sky astrophotography with the Skywatcher AP 150/1050 ESPRIT-150ED Professional OTA apochromatic triplet refractor telescope. Built with an f/7.0 focal ratio, this 150mm (5.91 in) aperture instrument features a 1050mm focal length, delivering 0.77 arcseconds Dawes resolving power and reaching magnitude 13.6 for high-resolution planetary imaging and critical deep-space observation.
The Skywatcher AP 150/1050 ESPRIT-150ED Professional OTA incorporates an air-spaced triplet objective featuring an Ohara FPL-53 Super ED center element paired with Schott glass and 99.5% Metallic High-Transmission Coatings (MHTC). Bundled with a dedicated two-element field flattener, its CNC-machined body features a 3.4-inch Linear Power dual-speed rack-and-pinion focuser with 1:11 micro-reduction and a 360-degree rotator. Weighing 14.50 kg (31.97 lbs), this flagship 150mm refractor yields a flat 44mm full-frame image circle.
Key Features of Skywatcher AP 150/1050 ESPRIT-150ED Professional OTA
Engineered for reference-grade visual astronomy and observatory astrophotography, this 150mm Sky-Watcher ESPRIT Super APO refractor pairs FPL-53 triplet optics with a dedicated field flattener. Its 3.4-inch rotatable Linear Power focuser and 95mm backfocus deliver pinpoint star profiles across full-frame sensors.
- 150mm (5.91 in) clear aperture with 1050mm focal length and versatile f/7.0 optical speed
- Air-spaced triplet objective featuring Ohara FPL-53 Super ED and Schott glass
- Metallic High-Transmission Coatings (MHTC) achieving 99.5% optical transmission
- Dedicated 2-element optical field flattener delivering a 44mm full-frame image circle
- Standard 95mm back focus spacing from dedicated M48 field flattener thread
- 3.4-inch Linear Power CNC dual-speed rack-and-pinion focuser with 1:11 micro-drive
- 360-degree field rotator, Losmandy 75mm dovetail bar, and CNC-machined tube rings
- Heavy-duty wheeled aluminum trunk case, 2-inch dielectric diagonal, and accessories included
150mm FPL-53 Super ED Triplet & Dedicated Field Flattener
The triplet optical prescription combines an Ohara FPL-53 Super ED center element with Schott glass to eliminate chromatic aberration across the visible spectrum. Paired with the dedicated two-element field flattener, this flagship Sky-Watcher ESPRIT refractor supports visual and imaging magnifications from 21.4x up to 300x.
3.4-Inch Linear Power Focuser & Wheeled Trunk Case
Carrying heavy professional camera arrays requires an unyielding mechanical drawtube. The Sky-Watcher ESPRIT-150ED features a 3.4-inch CNC rack-and-pinion focuser with 1:11 micro-reduction and a 360-degree camera field rotator. Housed in a heavy-duty wheeled aluminum trunk case, this optical tube is well protected during transport to dark-sky observatory sites.
- 3.4-inch Linear Power CNC rack-and-pinion focuser with 1:11 precision micro-reduction
- Built-in 360-degree mechanical camera field rotator for seamless astrophotography framing
- Heavy-duty wheeled aluminum trunk case for secure transportation and field mobility
Sky-Watcher ESPRIT Series Warranty
The Skywatcher AP 150/1050 ESPRIT-150ED Professional OTA is backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the 150ED OTA, dedicated 2-element field flattener, 2-inch dielectric diagonal, 9×50 right-angle finderscope, 28mm LET eyepiece, M48 Canon adapter, and heavy-duty wheeled aluminum trunk case.
Sky-Watcher AP 150/1050 ESPRIT-150ED Professional OTA Specs
| Parameter | Specification |
|---|---|
| Brand | Sky-Watcher |
| Full Model Code / SKU / MPN | 10148 (SW-ESPRIT-150) |
| Country of Origin | China |
| Series / Product Line | ESPRIT Professional Super APO Triplet |
| Optical Design | Apochromatic Triplet Refractor (Air-Spaced with 2-Element Field Flattener) |
| Clear Aperture | 150 mm (5.91 in) |
| Focal Length | 1050 mm |
| Focal Ratio | f/7.0 |
| Optical Coatings / Substrate Treatment | Metallic High-Transmission Coatings (MHTC 99.5%) |
| Central Obstruction | 0% - Unobstructed Refractor |
| Glass Substrate / ED Element Spec | Ohara FPL-53 Super ED Center Element paired with Schott Glass |
| Corrected Image Circle / Sensor Coverage | 44 mm (Full-Frame Format with Dedicated Flattener) |
| Standard Back Focus / Flange Focal Distance | 95 mm from dedicated M48 Field Flattener thread |
| Diffraction-Limited Theoretical Resolving Power | 0.77 arcseconds |
| Limiting Visual Stellar Magnitude | 13.6 mag |
| Highest Useful Magnification | 300x |
| Lowest Practical Magnification | 21.4x |
| Focuser Architecture & Reduction Ratio | 3.4-inch Linear Power CNC Dual-Speed Rack-and-Pinion Focuser 1:11 (360-degree Rotatable) |
| Optical Tube Assembly (OTA) Dry Weight | 14.50 kg (31.97 lbs) |
| OTA Physical Dimensions | 1020 mm retracted / 1150 mm extended length, 185 mm dew shield diameter |
| Included Mechanical Mounting Interface | Losmandy-style 75mm Dovetail Bar with CNC Machined Tube Rings |
| Mount & Drive Type Included | OTA Only (Mount Not Included) |
| Verified Factory In-Box Inclusions | 150ED OTA, Dedicated 2-Element Field Flattener, 2-inch Dielectric 99% Star Diagonal, 9x50 Right-Angle Finderscope, 28mm 2-inch LET Eyepiece, M48 Canon Adapter, Heavy-Duty Wheeled Aluminum Trunk Case |
| Factory Warranty Coverage | 2-Year Limited Warranty |
| Primary Optical Application & Astronomical Target Profile | Flagship Observatory Deep-Sky Astrophotography, High-Resolution Planetary Imaging, Reference-Grade Visual Astronomy |


























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