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Used Sky-Watcher StarTravel 102 AZ3 102mm Refractor Telescope (500mm f/4.9) with Manual Alt-Az Mount
SKU: US1571143
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About Sky-Watcher StarTravel 102 AZ3 102mm Refractor Telescope (500mm f/4.9) #1571143
FEATURED REVIEWS
SkyWatcher 120mm Refractor.
Bought this to replace a 8" Celestron that was more than this 83 old could handle any more. Initial observations indicate a much better all around scope in terms of performance, weight, and grab n go.
A really great refractor at an amazing price.
This is everything it is said to be. Although the pic is a little deceptive, the finder is a red-dot device, not a small scope. The tripod is very sturdy, but operating instructions a bit vague. I was suprised to find the tube rings bolt directly to a bracket of the tripod, rather than to a vixen-style bracket. That arrangement would make putting up and taking down the scope assembly noticably simpler, especially in the dark! I guess Sky Watcher expects users to leave the whole rig assembled....
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his Sky-Watcher 102mm (4") f/5 telescope is a two-element, air-spaced, fully multi-coated objective, achromatic refractor, which can give exciting "rich field" astronomical views. It can provide excellent vistas of star fields, clusters, nebulae, galaxies, planets, the Moon and (with correct filtering or by projection) the Sun. It is also a fine terrestrial telescope when mounted on an alt-azimuth mount or a photographic tripod.
Crisp images at a reasonable price make it an excellent beginner's "first telescope", or a great travelling telescope for a more advanced observer. Similar to the popular 80mm f/5 refractor, this larger aperture model has more light collecting power at the same focal ratio and accepts 2" diagonals for awesome wide field views, while only a small amount of chromatic aberration and weight.
Weighing about 3kg. (6.5lbs.) the optical tube assembly is readily carried and with a compressed length of approximately 50cm (21.7") it is easily transported. Being a refractor, it is quick and easy to set up and the low- maintenance, enclosed optics come fully collimated from the factory.
The optical tube assembly comes with "tube mounting rings". These hinge open to allow easy installation of the optical tube and the locks can be loosened during use to allow tube rotation and balancing. Mounting the telescope on an alt-azimuth or an equatorial mount is quick and simple with the appropriate mounting plate. This telescope also performs well as a fixed aperture, 510mm lens for both terrestrial and astrophotography.
The "fast" f/5 focal ratio, combined with today's high-speed films, is excellent for capturing lunar and solar eclipses as well as for nature photographs. A solid, equatorial mount and a method of guiding are required for longer exposure astrophotography. A T-mount thread on the eyepiece holder allows direct attachment of an appropriate T-adapter and the optional extension tube gives closer focusing for terrestrial photography.