Description
The popular “little scope that could” is now even better. The wide-field refractor that novices appreciate for its ease of use and big-scope owners value as a take-anywhere second scope now has fully multi-coated optics and comes with its own padded carrying case.
Its 80mm achromatic objective lens, short 400mm focal length (f/5.0), correct-image diagonal (1.25″) and 6×26 correct-image finder scope make the ST80-T perfect for casual stargazing or terrestrial viewing. The short focal length means you’ll see a beautifully wide field of view. And like all refractors, the unobstructed light path means sharper images with better definition and contrast
| Product Specifications: | |
| Use | Terrestrial |
| User level | Level 1 |
| Optical design | Refractor |
| Optical diameter | 80mm |
| Focal length | 400mm |
| Focal ratio | 5 |
| Optics type | Air-spaced doublet |
| Glass material | Crown/Flint |
| Eyepieces included | Sirius Plossl 25.0mm, 10.0mm |
| Magnification with included eyepieces | 16x, 40x |
| Resolving power | 1.43arc*sec |
| Lowest useful magnification | 12x |
| Highest useful magnification | 189x |
| Limiting stellar magnitude | 11.3 |
| Optical quality | Diffraction Limited |
| Finder scope | 6×26 Correct-image |
| Focuser | 1.25″ Rack-and-pinion |
| Diagonal | 1.25″ 45-deg Prism Correct-image |
| Mount style | Optical Tube without Mount |
| Astro-imaging capability | Lunar, planetary & long exposure |
| Tube material | Aluminum |
| Length of optical tube | 15.0 in. |
| Weight, optical tube | 3.8 lbs. |
| Additional included accessories | Soft carry case |
| Other features | Dovetail mounting bar w/ 1/4″-20 threaded holes, Now Fully Multi-Coated |
| Warranty | One year |