Sky-Watcher Esprit EDX 150 Super APO Triplet - S11455
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Sky-Watcher Esprit EDX 150 Super APO Triplet
Designed with the discerning astrophotographer in mind, Sky-Watcher’s top of the line Esprit EDX refractors deliver amazing imaging performance.
The Sky-Watcher Esprit EDX series of Astrographs use three-element air-spaced optics with knife-edge baffles to deliver images equal to telescopes costing thousands of dollars more! These beautiful Super APO Triplet refractors have laboratory-matched lens assemblies that include extra-low dispersion elements for unrivaled clarity and color correction. False color is completely eliminated…you won’t believe the level of contrast and sharpness.
The exclusive linear-track rack & pinion 3.4” dual-speed rotatable focuser provides smooth, rock-solid focusing with zero image shift. The Camera Angle Adjuster at end of the focuser drawtube allows for orientation of your camera or eyepieces without needing to rotate the entire focuser.
The Sky-Watcher 150mm Esprit EDX comes with D-style mounting rings, dovetail plate, M48 camera adapter and foam-lined hard case. A two-element field corrector is available optionally, which guarantees a flat field across the entire imaging plane.
Highlights of the EDX 150 Refractor...
- Triplet super-apochromatic design
- Three-element, air-spaced optical assembly virtually eliminates false color
- 150mm aperture, 1050mm focal length, f/7 focal ratio
- FPL-53 glass
- Retractable dew shield
- 3.4-inch linear rail rack-and-pinion with micro focus
- Aluminum optical tube with white, glossy finish
- Camera Angle Adjuster and rotatable focuser
- Included accessories: Tube rings, D-style dovetail, accessory rail, M48 camera adapter, and padded hard case
| Optical Specifications | |
|---|---|
| Optical Design (achro or apo) | Super-Apochromatic |
| Lens Coating (fully multi-coated)? | Fully multi-coated |
| Lens design (doublet, triplet or Quad) | ED Triplet (Air Spaced) |
| Optical Quality | Diffraction limited (1/4 wave) |
| Collimatable Cell | Yes (Push/Pull Cell) |
| Primary Aperture (mm) | 150mm |
| F/Ratio | 7 |
| Focal Length (mm) | 1050mm |
| Optional Corrector Specifications | |
| Field Flattener or Reducer? | Flattener |
| Thread-On or Insertable | Thread-On |
| Corrector Thread size | M65x1 female/M62x1 male |
| Corrector Back Focus | 96mm |
| Corrector illuminated field | 43mm |
| Corrector adapter needed? | Yes (Included with telescope) |
| Corrector allow for 2" filters? | Yes |
| Optional Corrector/Reducer Specifications | |
| Corrector Name | Esprit 150ED 0.77x reducer/flattener |
| Optional Corrector/Reducer SKU | S20215 |
| Reduction (reducer only) | 0.77x |
| Corrector - insertable or thread-on | Thread on |
| Corrector Thread size | M74x1 female/48mm male |
| Corrector Back Focus | 90mm |
| Corrector illuminated field | 36mm |
| F/Ratio with reducer installed | 5.4 |
| Focal Length with reducer installed | 810mm |
| Corrector adapter needed? | No |
| Corrector allow for 2" filters? | Yes |
| Mechanical Specifications | |
| Focuser Type | Linear Rail Rack & Pinion |
| Focuser Size | 3.4" |
| Focuser: Dual or Single Speed | Dual speed (11:1 ratio) |
| Focuser: Rotatable? | Yes |
| Camera Adjuster | Yes |
| Compression Ring | Yes |
| Drawtube thread size | M74x1 |
| Retractable dew shield? | Yes |
| OTA material | Aluminum |
| Optical Tube length Retracted/Extended (inches) | 36.9"/40.5" |
| Dew Shield diameter (inches) | 7.89" |
| Optical Tube weight with included accessories (pounds) | 34 pounds |
| Mounting Rings? | Yes |
| Mounting Ring hole thread size(s) | 1/4-20 (top threads) |
| Dovetail type | D-style |
| Dovetail length | 13" |