The Sky-Watcher 70mm (2.8") f/5 telescope is a two-element, air-spaced, fully multi- coated objective, refractor. It is a well- proven performer which gives "rich- field" views of star fields, clusters, nebulae, bright galaxies, planets, the Moon and (with correct filtering or by projection) the Sun, as well as excellent terrestrial views. projection) the Sun, as well as excellent terrestrial views. Images are crisp and with very little chromatic aberration.
One of the greatest assets of this solidly built telescope is portability. The light-weight optical tube (1.25kg; 2.8lbs), and the compressed length of about 480mm (18") make it "take it with me" telescope. The optical tube can be adapted to fit into an airline carry-on bag, or into a hiker's backpack. Whether it is to be used as a beginner's telescope, a "rich-field", a backup, a guide scope or a travelling telescope, the very reasonable price make it a choice to seriously consider.
Quick and easy to set up and the low maintenance, enclosed optics come fully collimated from the factory. Alignment of the finderscope is all that is needed to start viewing. The optical tube assemblie is held firmly by hinged, felt-lined "tube mounting rings" which allow easy installation and optical tube rotation and balancing. Mounting one of this telescope on the supplied aluminum alt-azimuth mount or a photographic tripod is quick and simple with the supplied "multi-function mount plate".
This telescope performs well as a fixed aperture lenses for both astrophotography and terrestrial photography. The "fast" focal ratio, combined with today's high speed films, make it useful for capturing lunar and solar eclipses as well as nature photographs. With a suitable T-adapter, a camera can be connected directly to the T-mount thread on the eyepiece holder and a supplied 60mm (2.4") extension tube allows closer focussing for terrestrial photography.
A perfect companion to refractors, this all-metal alt-azimuth mount is exceptionally sturdy and easy to operate. It features slow-motion control cables on both axes, allowing horizontal and vertical operation.
Type : Achromatic refractor
Diameter : 70mm
Focal length : 500mm F/7.1
Mount : Alt-Azimuth AZ3
Optical tube weight : 1.25kg (2.8lbs)
Tripod : Adjustable. Aluminum.
Eyepiece : Super 25mm
Finderscope : Red Dot finder
Diagonal : Erect image