Startravel-102 AZ-3 RefractorThis SkyWatcher 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 traveling 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 to 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.
PhotographyBeing a refractor, it is quick and easy to set up and the low- maintenance, enclosed optics come fully collimated from the factory. It also performs well as a fixed aperture, 510mm lens for both terrestrial and astrophotography. The "fast" f/5 focal ratio is excellent for capturing lunar and solar eclipses as well as for nature photographs.
A T-mount thread on the eyepiece holder allows direct attachment of an appropriate T-adapter.
The mountThe intuitive and easy to use AZ3 Alt-Azimuth mount provides excellent stability and precise control, via its slow motion cables, on both the horizontal (azimuth) and vertical (altitude) axes.
Delivery contents- Optical tube
- 2 eyepieces with 10mm and 25mm
- Red Dot Finder
- Dual-Fit 1.25"/2" Focuser
- 45º Erect Image Diagonal 1.25"
- AZ3 Deluxe Alt-Azimuth Mount
- Aluminium Tripod with Accessory Tray
Products specifications
Connection to eyepiece | 1 1/4" and 2" |
Viewfinder | Red Dot Finder |
Max. useful visual power | 200 x |
Tracking | manually |
Designation | Alt-Azimuth |
Type of mount | AZ3 |
Eyepieces | 10 mm / 25 mm Eyepieces |
Weight of mount | 3.9 Kg |
Tube weight | 2.6 Kg |
Total weight | 10.3 Kg |
Focal length | 500mm |
Focal ratio | f/4.9 |
Aperture | 102mm |
Eyepiece adapter | 1,25", T2 |
Focuser | Dual-fit 1.25"/2" focuser |
Diagonal mirror | Amici-prism 1.25" |