Sky-Watcher USA
Evolux 82ED Doublet Apo Refractor
- Regular price
-
$ 915.00 - Sale price
- $ 595.00
- Unit price
- per
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In Stock
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- New ED doublet apochromatic optical design
- New lightweight, compact design perfect for wide field astrophotography
- New optical design featuring our proprietary Metallic High-Transmission Coatings (MHTC)
- 82mm aperture
- 530mm focal length
- Fast f/6.45 focal ratio
- One ED element with matched optics
- Adjustable dew shield protects against stray light and condensation on the lens
- Clamshell mounting system with dual finderscope brackets
- 2.4-inch 11:1 precision dual-speed rack-and-pinion style focuser for better load capacity
- V-style dovetail fits most mounts
- Optional reducer/corrector (477mm at F/5.8)
- Hard case included for your travel or storage needs
Description
Building on the foundation of the popular Evostar line of refractors, Sky-Watcher has developed the all new Evolux. Designed for the savvy astrophotographer looking for a lightweight scope that still packs a punch with key upgrades in the optics and the mechanics, Evolux is a perfect fit for a widefield grab and go setup.
Sky-Watcher's Evolux apochromatic doublet refractors are the perfect blend of superior extra-low dispersion glass and affordability. The lens assembly utilizes a proprietary combination of matched lenses, delivering tack-sharp stars with charcoal-black, contrast-rich skies. All ED glass elements feature our proprietary Metallic High-Transmission Coatings (MHTC), virtually eliminating all false color while the adjustable dew shield prevents stray light and condensation from affecting your photography.
Evolux comes in a foam-lined aluminum case with a 2.4-inch dual-speed rack-and-pinion-style focuser, dual finderscope brackets, a V-style dovetail, clamshell ring, adjustable dew shield, and the optional reducer/corrector.
Specifications
| Optical Info | |
|---|---|
| Optical Design | Apochromatic |
| Lens Coatings | Fully multi-coated |
| Lens Design | ED Doublet (Air Spaced) |
| Glass Type | ED Doublet |
| Optical Quality | Diffraction limited (1/4 wave) |
| Collimatable Cell | Yes (Push/Pull Cell) |
| Primary Aperture (mm) | 82 |
| F/Ratio | 6.45 |
| Focal Length (mm) | 530 |
| Observational Info | |
| Dawes Limit | 1.41 |
| Rayleigh Limit | 1.7 |
| Limiting Mag. | 12 |
| Minimum Magnification | 12x |
| Maximum Magnification | 161x |
| Light Gathering (compared to next size down) | 75% (compared to Evolux 62ED) |
| Mechanical Specifications | |
| Focuser | 2.4" Dual Speed (11:1) Rack & Pinion |
| Focuser: Rotatable? | No |
| Compression Ring | Yes |
| Retractable dew shield | Yes |
| OTA material | Aluminum |
| OTA Length (Retract/Ext.) | 16.375"/22.25" |
| Dew Shield diameter (mm) | 100mm |
| OTA Diameter | 90mm |
| OTA Weight (with accessories) | 6.5 lbs |
| Mounting rings | Yes |
| Dovetail type | V-style dovetail |
| Dovetail length | 6" |
| Optional Corrector/Reducer Specifications | |
| Corrector Name | Evolux 82ED 0.9x reducer kit |
| Optional Corrector/Reducer SKU | S20207 |
| Reduction (reducer only) | 0.9x |
| Corrector - insertable or thread-on | Thread-on |
| Corrector thread size | M56x1 female/M48 male |
| Corrector back focus | 55mm |
| Corrector illuminated field | 36mm |
| Includes one ED element | Yes |
| F/Ratio with reducer installed | 5.8 |
| Focal Length with reducer installed | 477mm |
| Corrector adapter needed? | Yes |
| Corrector allow for 2" filters? | No (Adapter included with reducer) |
| Accessories | |
| Eyepieces | No |
| Diagonal | No |
| Mounting Hardware | Clamshell/Dovetail |
| Camera Adapter | No |
| Flattener or Corrector | No |
| Collimation eyepiece | No |
| Finder | No |
| Case | Yes |
| Case Dimensions | 19.5" x 10.75" x 7.75" |
| Shipping Weight | 13.2 lbs. |
| Shipping Dimensions | 23" x 13" x 11" |
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