The Sky-Watcher EVOSTAR-90 is a classic two-element, air-spaced, achromatic refractor. With its long focal length, it is ideal for the detailed high-power study of the Moon, Planetary Surfaces and other objects in our solar system, providing crisp contrasty images. The supplied erect image diagonal provides an upright, fully corrected image allowing the telescope to be also used for terrestrial observing. The well engineered and easy to use AZ PRONTO Alt-Azimuth mount provides excellent stability and precise control, via its slow-motion cables, on both the horizontal (azimuth) and vertical (altitude) axes.
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