Sky-Watcher Skymax 180 Telescope
Sky-Watcher SKU: S11540 | Helix SKU: CTS11540
Overview
The Sky-Watcher Skymax Maksutov-Cassegrains are the ultimate take-anywhere telescopes. Despite their small dimensions they pack a powerful punch. Their high-resolution, diffraction-limited optical systems are multi-coated to maximize contrast and image sharpness.
Specifications:
| SKU | S11540 |
| UPC | 050234115407 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Cass |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| True Aperture (mm) | 182 |
| Primary Aperture (mm) | 199 |
| F/Ratio | 15 |
| Focal Length (mm) | 2700 |
| Secondary Diameter | 41mm |
| Secondary Obstruction (by diameter) | 23% |
| Secondary Obstruction by Area | 5% |
| Observational Info | |
| Dawes Limit | 0.64 |
| Rayleigh Limit | 0.78 |
| Limiting Mag. | 13.8 |
| Minimum Magnification | 26 |
| Maximum Magnification | 354 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | Primary Mirror |
| OTA Length (Retract/Ext.) | 22" |
| OTA Outer Diameter | 8.625" |
| OTA Weight (with accessories) | 19 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | 2" Star Diagonal |
| Mounting Accessories | V-Rail |
| Included Eyepieces | 28 LET |
| Magnification w/ Included Eyepieces | 96.4x |
| Included Case | No |
| Corrector | No |
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