- All Products
- Shop by Brands
- BW Technologies
- BW Technologies
- BW Technologies Monitors
- Models
- BW Clip
- BW Clip4
- GasAlertClip Extreme
- GasAlert Extreme
- GasAlertMicroClip XT
- GasAlertMicroClip XL
- GasAlertMicroClip X3
- GasAlertQuattro
- GasAlertMax XT II
- GasAlertMicro 5 Series
- SamplerPak
- IntelliDox Docking System
- MicroDock II
- BW Ultra
- BW Solo
- Gas Monitors
- Gas Monitor Manufacturers
- BW Technologies
- Bacharach
- Biosystems
- Crowcon
- Gas Clip Technologies
- GfG Instruments
- GMI/Detcon
- Honeywell Analytics
- Industrial Scientific
- MSA
- RAE Instruments
- RKI Instruments
- Calibration Gas
- Combustion Analyzers
- Water Quality
- Reliability Instruments
- Refractometers
- HVAC
- Weather
- Temperature
- Laboratory
- Sound
- IAQ
- Electrical
- All Categories
Sky-Watcher Skymax 90 Maksutov-Cassegrain Telescope - S11500
Item #:
SW-S11500
Brand:
Sky-Watcher
Share this product:
S11500 Skymax 90 Maksutov-Cassegrain Telescope by Sky-Watcher
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.
SKU | S11500 |
UPC | 050234115001 |
Optical Info | |
Optical Design | Mak-Cass |
Mirror Coatings | 94% Aluminum |
Lens Coatings | Fully Multi-Coated |
Glass Type | BK7/Borosilicate |
Primary Aperture (mm) | 90 | F/Ratio | 13.9 |
Focal Length (mm) | 1250 |
Secondary Diameter | 29mm |
Secondary Obstruction (by diameter) | 32% |
Secondary Obstruction by Area | 10% |
Observational Info | |
Dawes Limit | 1.29 |
Rayleigh Limit | 1.55 |
Limiting Mag. | 12.3 |
Minimum Magnification | 13 |
Maximum Magnification | 177 |
Light Gathering (compared to next size down) | 27% |
General Info | |
Focuser | Primary Mirror |
OTA Length (Retract/Ext.) | 11" |
OTA Outer Diameter | 4.125" |
OTA Weight (with accessories) | 3.6 |
Accessories | |
Included Finder | Red Dot |
Included Diagonal | 1.25" Star Diagonal |
Mounting Accessories | 1/4-20" Foot |
Included Eyepieces | 25/10 Wide Angle |
Magnification w/ Included Eyepieces | 50x/125x |
Included Case | Yes |
Corrector | No |