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Sky-Watcher Skymax 90 Maksutov-Cassegrain Telescope
- 90 mm Aperture Maksutov-Cassegrain
- Incorporates superb Optics
- Focusing system: Internal - Moving Primary mirror
- Short Tube length
- f/13.9 focal ratio
- 1250 mm focal length
- Includes Two eyepieces
- Red Dot Finder Included
- 1/4"-20 Foot Supplied for mounting scope
The Sky-Watcher 90 mm Skymax Maksutov-Cassegrain is the ultimate take-anywhere telescope. Despite its small dimensions it packs a powerful punch. The Skymax Maksutov-Cassegrain high-resolution, diffraction-limited optical systems are multi-coated to maximize contrast and image sharpness. This Sky-Watcher Skymax 90 Maksutov-Cassegrain telescope is a great way to get your entire family into astronomy. Just supply your own tracking (or other) mount or purchase one from Sky-Watcher USA.
This Maksutov-Cassegrain telescope has a focal length of 1250 mm (or f/13.9 focal ratio) to give you good magnification by means of the sharp, clear Maksutov optical system. Two eyepieces are included.
Telescope Specifications:
| SKU | S11500 |
| UPC | 050234115001 |
| Optical Design | Maksutov-Cassegrain system |
| Mirror Coatings | 94% Aluminum |
| Glass Type | BK7/Borosilicate |
| Primary Aperture (mm) | 90 mm (12") |
| F/Ratio | f/13.9 |
| Focal Length (mm) | 1250 mm |
| Secondary Diameter | 29 mm |
| Secondary Obstruction (diam) | 32% |
| Secondary Obstruction (area) | 10% |
| Dawes Limit | 1.29 arcsec |
| Rayleigh Limit | 1.55 arcsec |
| Limiting Mag. | 12.3 |
| Minimum Magnification | 13 |
| Maximum Magnification | 177 |
| Focuser | Internal - Moving Primary mirror |
| OTA Length | 11" |
| OTA Outer Diameter | 4.125" |
| OTA Weight (with accessories) | 3.6 lb |
| Included Finder | Red Dot illuminated Finder |
| Included Diagonal | 1.25" Star Diagonal |
| Mounting Accessories | 1/4-20 Foot |
| Included Eyepieces | 25/10 Wide Angle |
| Included Case | Yes |
| Corrector | No |
