The Sky-watcher EVOSTAR series are two-element, air-spaced, multi-coated objective achromatic refractors. They are truly outstanding, high-performance, high-resolution instruments manufactured to extremely high standards of optical and mechanical precision. With their long focal lenghs and breathtaking, diffraction limited optical performance, they are ideal for the detailed high-power study of the Moon, Planetary Surfaces and other objects in our solar system, giving crisp contrasty images. These telescope packages will stand you in great stead for a lifetime of serious astronomical viewing. Tube Material: Aluminium
SK909AZ3
- Diameter/Aperture: 90mm
- Focal Length: 900mm
- Multi-coated achromatic objective lens
- Aluminum tube
- Dew cap/Sunshade
- Adjustable Objective-lens Cell (available in 2001)
- 6x30 finderscope for easy location of objects
- Pre-assembled tripod for convenient and quick assembly - Smooth rack-and-pinion 1.25" focuser
- 65% more light gathering power than 70mm
- Perfect for serious beginners
Recommend for: URBAN