The SkyWatcher Evostar 90 or 90/900 refracting telescope is recommended for anyone looking for a good quality telescope for lunar and planetary observations. Practically this is the larger version of 80/900 model, providing 26% more light (and 65% more light than 70/900) and of course better optical resolution.
The objective lens is a 90 mm Fraunhofer air spaced achromatic lens with 900 mm focal length with a theoretical resolution of 1.3". The Cassini-division in Saturn's ring system or the Great Red Spot on Jupiter can be seen, including martian polar caps and continents. All of the Messier object are reachable (dark skies required) and many globular clusters and galaxies can also be observed. The telescope comes with 2 Barium eyepieces (10 and 25mm) providing 36x and 90x magnification, an achromatic Barlow lens. The Barlow lens feature a T2 thread and thus can be used for photography. The focuser also has a T2 mount. A 6x30 spring load achromatic finderscope is included which can be removed in a second for transportation. The mount is an EQ-2 model which is more robust than the EQ-1 and can be equipped with a clock drive. A star diagonal (adjustable to 45 or 90 degrees) is also included. An Amici prism can be used for daytime observations to produce erect images. For solar observations Baader's solar filter is available.