Sky-Watcher S11530 Overview
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1Description
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2Optical Performance
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3Mounting
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4Included Accessories
Balancing aperture with manageability and representing one of the widest apertures in the series, the Sky-Watcher 150mm f/12 Maksutov-Cassegrain Telescope is powerful while maintaining the portability of the smaller models. The Maksutov design exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. This modified optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but the optical benefits, when coupled with the larger aperture and fully multi-coated optics, make this an ideal scope for making detailed solar, lunar, and planetary observations, while being able to resolve deep-sky objects like stars, clusters, galaxies, and nebulae.
The scope is outfitted with a large 2" visual back and, to get users started, Sky-Watcher includes a 28mm long eye relief eyepiece that produces a moderate 64x magnification and a 90° star diagonal for viewing with the optical tube assembly (OTA) pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users who have a reliable support system or want to use it as part of a dual-OTA setup for star parties or observation/imaging rigs. It is outfitted with a Vixen-style dovetail plate for use with compatible mounts. This OTA's compact form factor belies its observation power and resolution and is ideally suited as a grab-and-go option for quick observation sessions or heading out to remote locations.
- 150mm aperture
- f/12 focal ratio
- 1800mm focal length
- Front convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of view
- Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
- Fully multi-coated optics maximize light transmission to improve brightness, color rendition, sharpness, and contrast
- Resolution: 0.77 arcsec; Dawes'
- Internal primary mirror focus
- 2"-diameter visual back accepts larger eyepieces and accessories
- Requires mount and tripod for proper use
- Vixen-style dovetail plate
- Weight 14 pounds, including OTA and accessories
- Eyepiece:
- 2" barrel diameter
- Accepts most 2" astronomical filters
- 28mm eyepiece yields 64x power
- Comfortable long eye relief
- Diagonal:
- 2" snout and eyepiece holder
- 90° angle places head in a comfortable viewing position
- Star configuration corrects image horizontally for terrestrial use
- Finderscope:
- Relatively low 8x magnification provides a wide field of view for easier alignment and faster star-hopping navigation
- Larger 50mm aperture helps resolve dimmer objects that dot finders cannot
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UPC: 050234115308
In the Box
- Sky-Watcher 150mm f/12 Maksutov-Cassegrain Telescope (OTA Only)
- 90° Star Diagonal
- 28mm Eyepiece
- 8x50 straight view Finderscope
- Limited 2-Year Warranty
Table of Contents
- Description
- Optical Performance
- Mounting
- Included Accessories
Sky-Watcher S11530 Specs
Optical Tube Assembly
| Optical Design |
Maksutov Cassegrain |
| Aperture |
150 mm / 5.9" |
| Focal Length |
1800 mm |
| Focal Ratio |
f/12 |
| Focuser |
Internal |
| Eyepiece Barrel Diameter |
1.25", 2" |
| Diagonal |
90° Star |
| Finderscope |
Yes |
| Mounting |
Vixen Style |
General
| Batteries |
None |
| GPS |
No |
| Wi-Fi |
No |
| Weight |
14 lb / 6.4 kg |
Packaging Info
| Package Weight |
17.3 lb |
| Box Dimensions (LxWxH) |
24.7 x 10.7 x 9.9" |
Sky-Watcher S11530 Reviews
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