Sky-Watcher Startravel telescopes are two-element, air-spaced achromatic refractors, that are well proven performers for "rich-field" views of comets, star fields, star clusters, nebulae, bright galaxies, and planets, the moon and the sun (with proper safety filtering!), as well as giving excellent daytime terrestrial views when used with an erecting prism.
These wide-field, short-tube telescopes are great as fixed aperture lenses for both astrophotography and terrestrial photography. Their “fast" focal ratios make them useful for capturing lunar and solar eclipses as well as nature photographs.
Characteristics:
- Achromatic objective, doublet with multi-coatings
- Aperture 80mm, focal lenght 400mm, f/5.0
- Solid OTA
- Stable 1¼" focuser with T2 thread
- Lightweight and compact
Delivery:
- Optical tube 80/400mm doublet lens
- Stable 1¼" focuser with T2 thread
- Amici erecting prism 45° 1¼"
- tube rings
- Packaging
Products specifications
|
Coating
|
Multicoated |
|
Aperture
|
80 mm |
|
Focal ratio
|
f/5 |
|
Type of telescope
|
Achromat Refractor |
|
Max. useful visual power
|
140 x |
|
Focal length
|
400 mm |
|
Connection to eyepiece
|
1.25" and T2 |
|
Lens
|
two-element, air-spaced |
|
Focuser
|
1 1/4" |
|
Included accessories
|
45° Amici prism, tube rings |
