From ~$213.89
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The Skymax 90's Maksutov-Cassegrain folded optical system provides sharp, high contrast images ideal for observing the Moon, planets, and deep-sky objects. Generally regarded as producing sharper images than Schmidt-Cassegrains, Maksutovs offer astronomers large visual aperture, high contrast and long focal length in a compact package, delivering higher levels of planetary detail due to a focal length that is 5-7 times longer than average Newtonian or refractor telescopes. The Skymax Maksutov-Cassegrains are the ultimate take-anywhere telescopes that, despite their small dimensions, pack a powerful punch with high-resolution, diffraction-limited optical systems that are multi-coated to maximize contrast and image sharpness.
| Highest magnification | 180 |
| Focal length | 1250 mm |
| Optics type | Maksutov-Cassegrain |
| Aperture | 90 mm |
| Focal ratio | f/13.8 |
| Secondary Diameter | 29 mm |
| Weight | 1.3 lb |
| Minimum Magnification | 13 |
| Maximum Magnification | 177 |
| Limiting Magnitude | 12.3 |
| Dawes Limit | 1.29″ |
| Rayleigh Limit | 1.55″ |
| Mirror Coatings | 94% Aluminum |
| Glass Type | BK7/Borosilicate |