Sky-Watcher 180mm Maksutov-Cassegrain Telescope
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- Maksutov-Cassegrain optical design
- Primary and secondary mirrors feature proprietary Radiant Aluminum Quartz™ (RAQ™) coatings
- Corrector plate featuring Metallic High-Transmission Coatings (MHTC) virtually eliminates chromatic aberrations
- 180mm aperture, 2700mm focal length
- Aluminum tube coated with glossy, black diamond metal-flake finish
- Included accessories: a 2-inch 28mm eyepiece, a 9x50 finderscope, and a 2-inch diagonal
- Rear cell thread: standard SCT thread 2-24
If you’re seeking crisp, contrasty views with high levels of detail, look no further than the Skymax series, Sky-Watcher’s premiere line of Maksutov-Cassegrains. Generally regarded as producing a sharper image than Schmidt-Cassegrains, Maksutovs offer astronomers a large visual aperture, high contrast and long focal length in a compact package. These telescopes deliver higher levels of planetary detail due to a focal length that is 5-7 times longer than your average Newtonian or refractor telescope.
Skymax Maksutovs feature mirrors constructed of borosilicate, polished and coated with our proprietary Radiant™ Aluminum Quartz™ (RAQ™) coatings, which produce a remarkable 94% reflectivity. All Maksutovs use a corrector plate to help reduce chromatic aberration, which is then coated using our signature Metallic High-Transmission Coatings™ (MHTC™), producing professional grade optics at an affordable price.
The Skymax 180 # S11540 includes a 2-inch 28mm eyepiece, a 9x50 finderscope, V-style dovetail, and a 2-inch diagonal.
Specifications:
Optical Info:
- Optical Design: Mak-Cass
- Mirror Coatings: Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
- 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
| Manufacturer | Sky Watcher |
|---|---|
| Free Shipping Graphic | Free Contiguous US Shipping |
| Telescope Focal Length | 2501 - 3000m |
| Hide Found a better Shipped Price on Frontend? | No |
- Maksutov-Cassegrain optical design
- Primary and secondary mirrors feature proprietary Radiant Aluminum Quartz™ (RAQ™) coatings
- Corrector plate featuring Metallic High-Transmission Coatings (MHTC) virtually eliminates chromatic aberrations
- 180mm aperture, 2700mm focal length
- Aluminum tube coated with glossy, black diamond metal-flake finish
- Included accessories: a 2-inch 28mm eyepiece, a 9x50 finderscope, and a 2-inch diagonal
- Rear cell thread: standard SCT thread 2-24
If you’re seeking crisp, contrasty views with high levels of detail, look no further than the Skymax series, Sky-Watcher’s premiere line of Maksutov-Cassegrains. Generally regarded as producing a sharper image than Schmidt-Cassegrains, Maksutovs offer astronomers a large visual aperture, high contrast and long focal length in a compact package. These telescopes deliver higher levels of planetary detail due to a focal length that is 5-7 times longer than your average Newtonian or refractor telescope.
Skymax Maksutovs feature mirrors constructed of borosilicate, polished and coated with our proprietary Radiant™ Aluminum Quartz™ (RAQ™) coatings, which produce a remarkable 94% reflectivity. All Maksutovs use a corrector plate to help reduce chromatic aberration, which is then coated using our signature Metallic High-Transmission Coatings™ (MHTC™), producing professional grade optics at an affordable price.
The Skymax 180 # S11540 includes a 2-inch 28mm eyepiece, a 9x50 finderscope, V-style dovetail, and a 2-inch diagonal.
Specifications:
Optical Info:
- Optical Design: Mak-Cass
- Mirror Coatings: Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
- 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
| Manufacturer | Sky Watcher |
|---|---|
| Free Shipping Graphic | Free Contiguous US Shipping |
| Telescope Focal Length | 2501 - 3000m |
| Hide Found a better Shipped Price on Frontend? | No |
Sky-Watcher 180mm Maksutov-Cassegrain Telescope # S11540