Product Description
Sky-Watcher Esprit 70EDX f/7 Super APO Triplet Refractor Telescope
Premium 70mm Apochromatic Refractor for Astrophotography and Visual Observing
The Sky-Watcher Esprit 70EDX Super APO Triplet Refractor Telescope represents the highest level of optical precision in Sky-Watcher’s premium Esprit range. Designed primarily for demanding astrophotographers, this compact yet powerful 70mm apochromatic refractor delivers exceptional contrast, sharpness, and colour correction, making it ideal for full-frame imaging systems.
Featuring a precision-engineered f/7 optical system, premium Hoya FCD100 ED glass, and Sky-Watcher’s advanced Metallic High-Transmission Coatings (MHTC), the Esprit 70EDX achieves outstanding light transmission and eliminates chromatic aberration. The result is razor-sharp, high-contrast images with no detectable colour fringing, even when imaging bright stars or planets.
Compact, robust, and engineered to professional standards, this telescope is perfect for portable astrophotography setups and high-resolution wide-field imaging.
Key Features
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Premium 70mm Super APO triplet refractor
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High-performance 490mm focal length (f/7) optical system
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Includes premium Hoya FCD100 ED glass element
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True apochromatic design eliminates chromatic aberration
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Advanced Metallic High-Transmission Coatings (MHTC) for maximum light transmission
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Full-frame compatible imaging performance
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Precision 2.8" dual-speed rack and pinion focuser
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360° rotatable adaptor for easy image framing
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CNC machined aluminium tube rings with integrated carrying handle
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Retractable dew shield for portability
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Supplied in protective aluminium carry case
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Ideal for astrophotography and visual observation
Professional Super APO Triplet Optical Design
The Esprit 70EDX uses a precision-engineered three-element apochromatic objective lens, incorporating premium Hoya FCD100 ED glass. This advanced optical design virtually eliminates chromatic aberration, delivering exceptional clarity and contrast.
Benefits of the Super APO triplet design include:
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Zero detectable colour fringing
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Extremely sharp star images
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Excellent contrast and detail
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Flat, well-corrected imaging field
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Outstanding astrophotography performance
Each lens surface is treated with Sky-Watcher’s proprietary Metallic High-Transmission Coatings, achieving up to 99.5% light transmission for maximum brightness and efficiency.
Optimised for Astrophotography and Full-Frame Imaging
The Esprit 70EDX is designed with astrophotographers in mind, offering outstanding compatibility with modern imaging sensors, including full-frame cameras.
Key imaging advantages include:
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Fully corrected optical field
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Excellent illumination across large sensors
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Precise focusing with zero image shift
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Compatible with optional 0.92× focal reducer/flattener
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Ideal for deep sky, nebula, galaxy, and wide-field imaging
The optional reducer also shortens focal length and improves imaging speed for faster exposures.
Precision CNC Dual-Speed Rack and Pinion Focuser
The telescope features a high-quality 2.8-inch dual-speed rack and pinion linear power focuser, CNC machined for maximum strength and precision.
Key focuser benefits include:
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Smooth, precise focusing with 11:1 fine focus control
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High load capacity for heavy cameras and accessories
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Zero image shift during focusing
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360° rotatable adaptor for easy camera positioning
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Indexed drawtube for repeatable focus positioning
This ensures accurate focusing and reliable performance for demanding astrophotography setups.
Compact, Portable, and Precision Engineered
Despite its professional performance, the Esprit 70EDX remains highly portable and easy to transport.
Features include:
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Lightweight aluminium optical tube
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Retractable dew shield for compact storage
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Internal baffling to maximise contrast
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CNC machined tube rings and carry handle
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Protective aluminium carry case
This makes it ideal for both permanent observatory setups and portable astrophotography.
Built for Advanced Astrophotographers
The Esprit 70EDX is perfect for:
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Deep sky astrophotography
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Nebula and galaxy imaging
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Wide-field astrophotography
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Full-frame camera imaging
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Portable astrophotography setups
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High-end visual observation
Technical Specifications
| Specification | Details |
|---|---|
| Optical Design | Super APO Triplet Refractor |
| Objective Lens Diameter | 70mm |
| Focal Length | 490mm |
| Focal Ratio | f/7 |
| Glass Type | Hoya FCD100 ED Element |
| Optical Coatings | Metallic High-Transmission Coatings (MHTC) |
| Focuser | 2.8" Dual-Speed Rack & Pinion |
| Fine Focus Ratio | 11:1 |
| Rotatable Adaptor | Yes (360°) |
| Image Circle | 44mm (with optional flattener) |
| Dew Shield | Retractable |
| Mounting | 45mm Dovetail Bar |
| Tube Material | Aluminium |
| OTA Length | 368mm (retracted), 420mm (extended) |
| Weight | 3.2kg |
What’s Included
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Sky-Watcher Esprit 70EDX Optical Tube Assembly
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CNC machined tube rings
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Integrated carrying handle
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45mm dovetail mounting bar
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Aluminium carry case
(Note: Eyepiece, diagonal, finderscope, and focal reducer sold separately.)
Why Choose the Sky-Watcher Esprit 70EDX?
The Sky-Watcher Esprit 70EDX is a premium astrophotography refractor delivering professional optical performance in a compact, portable design. With exceptional colour correction, outstanding sharpness, and precision mechanical construction, it provides everything required for high-resolution astrophotography.
Whether you're capturing nebulae, galaxies, or wide-field nightscapes, the Esprit 70EDX offers the performance, reliability, and image quality expected from a top-tier apochromatic refractor telescope.
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