Telescope 82ED EVOLUX - Skywatcher
Sky-Watcher recently expanded its range of apochromatic refractors with the Evolux 62 and 82ED. They are inspired by the EvoStar range with some mechanical innovations to offer ultra-compact instruments of good optical quality. They are aimed at amateurs looking for an instrument that is as portable and lightweight as possible. The Evolux 82ED weighs barely 3kg (with collar and dovetail) for a length of 420mm! Its dew shield is in fact retractable (unlike the EvoStar 72ED). The high optical quality of this model offers everyone the opportunity to acquire a high-performance instrument at a very attractive price for wide-field astrophotography, planetary/solar observation or autoguiding. The Evolux 82ED will delight more than one amateur or beginner thanks to its good chromatic correction.
To obtain the coveted "APO" designation, a refractor must correct primary and secondary chromatic aberrations, inherent in all systems whose light rays pass through an optical element. In the case of the Sky-Watcher Evolux 82ED, a doublet composed of an ED glass element reduces chromatic aberrations to significantly limit the appearance of colored rims on planets or the Moon. The chosen ED glass, FPL-53 (Schott), is best able to correct these defects thanks to its very low dispersion.
The use of multi-layer coatings on all surfaces significantly limits losses due to lens passage, making the Evolux 82ED brighter and more contrasty than conventional, less well-corrected refractors. The "Metallic High-Transmission" (MHC) coating is applied to the air-glass surfaces, ensuring stunning results (transmission close to 99.5%). Thanks to its very short focal length ratio of f/6.46, the Sky-Watcher Evolux 82ED telescope is particularly suitable for deep-sky photography. Combined with a large-format digital camera (0.9x corrector/reducer recommended), for example, you can point the telescope at large nebulae such as Orion, the Lagoon, or the famous Andromeda Galaxy.
2.4" focuser with 11:1 gear ratio
Focusing is achieved via a 2.4" (61mm) rack-and-pinion focuser, offering a greater payload than that of the EvoStar 72ED. Robustness and focusing precision are therefore guaranteed for astrophotographers with APS-C format cameras. To be consistent with the optics and provide good results in astrophotography (where focusing is paramount), the Evolux 82ED focuser features a fine 11:1 reduction screw.
To meet the demands of amateur astronomers, the optical tube is made entirely of aluminum. No plastic parts are used! The robustness is evident, as is the particularly attractive aesthetic. The interior is blackened and baffled to limit the intrusion of stray light. Two finderscope bases are available to accommodate, for example, a finderscope (optional) and a guide scope (optional). at the same time. The necklace is unique and with a short Vixen-type dovetail.
Features
- Optical Tube: Aluminum
- Multi-coated 2-element objective lens with FPL-53 glass (Schott)
- Optical Design: Apochromatic refractor
- Effective Diameter: 82mm
- Focal Length: 530mm
- Focal Ratio: f/6.46
- Focal Ratio (with optional 0.9x reducer): f/5.82 (4.34° field of view)
- Focus Holder: 50.8mm Sky-Watcher 2.4" Dual Speed Rack (with 1:11 gear reduction)
- Length: 420mm retracted / 580mm extended
- Weight (with collar and dovetail): 2.92kg
In The Box
- 1x Sky-Watcher Evolux 82ED Optical Tube
- 1x 2.4" Dual Speed 1:11 Rack and Pinion Focuser
- 1x 50.8mm Exit Tube with Compression Ring
- 1x Mounting Collar
- 1x Vixen Dovetail (45mm long)
- 2x Finderscope Bases
- 1x Retractable Dew Shield
- 1x Hard Case with Pre-Cut Foam
