* Astronomy

Members Login
Post Info TOPIC: Sky-Watcher Evostar 90


Posts: 131433
RE: Sky-Watcher Evostar 90

Refractors are known for their crisp, high contrast views and, in real terms for planetary work, the Evostar 90 refractor will delivers sharp views that will out preform a 6" Newtonian design reflector.
Saturn rings can be easily be seen as well as Saturn's largest moon, Titan.† With favourable conditions, the giant red spot on Jupiter can just be made out.† The Pleiades star cluster should reveal between 80 - 100 stars.
It should be noted that the f10 focal length, while being ideal for planetary work, however, does not suit the telescope for being a 'rich star scope' or a comet hunter (The long focal length will hamper observations of large diffuse objects).† Nor are refractors suited to astrophotography.
The Equatorial mount included with the Evostar 90 EQ will help to track objects, which is very usefull when viewing at high powers. But it is very evident that the EQ-2 equatorial mount is at the cheaper end of the market.
Also, the tripod will produce a notacible wobble when the legs are fully extended,† (A suspended sand bag weight under the tripod may help with the shake).
It should also be noted that the Evostar comes in a cheaper and less useful alt/azimuth mounted version.
All in all, at this price range, the Evostar 90 makes for an ideal beginners, or amateur astronomers telescope.



Posts: 131433

Sky-Watcher Evostar 90 (EQ 2) Refractor Telescope

The Sky-watcher EVOSTAR 90 (EQ2) is a two-element, air-spaced, multi-coated objective achromatic refractor. It is a truly outstanding, high-performance, high-resolution instrument manufactured to extremely high standards of optical and mechanical precision. With its long focal length and breathtaking, diffraction limited optical performance, it is ideal for the detailed high-power study of the Moon, Planetary Surfaces and other objects in our solar system, giving crisp contrasting images.
Single axis motor drives can easily be fitted to the Evostar 90 (EQ2).† Tube Material: Aluminium

Price: £155.00

††† 90mm Optical tube assembly
††† 6x30 Finderscope
††† EQ2 Equatorial Mount
††† Aluminium Tripod with Accessory Tray
††† 1.25"/31.7mm Star Diagonal
††† Eyepieces Supplied (1.25"): 10mm & 25mm

Read more

EVOSTAR-90 (AZ3) 90mm (3.5") f/900 REFRACTOR

The Sky-watcher EVOSTAR series are two-element, air-spaced, multi-coated objective achromatic refractors.
Read more

Page 1 of 1  sorted by
Quick Reply

Please log in to post quick replies.

Create your own FREE Forum
Report Abuse
Powered by ActiveBoard