Sky-Watcher EvoStar 150DX 150mm f/8 Apo Refractor # S11195
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Quick Overview
- Doublet apochromatic optical design
- Two-element, air-spaced optical assembly minimizes false color
- 150mm aperture, 1200mm focal length, f/8 focal ratio
- 3.4" Helinear rack & pinion focuser
- Aluminum tube coated with glossy, black diamond metal-flake finish
- Included accessories: tube rings, D-style dovetail, and foam-lined aluminum case
Product Details
Sky-Watcher’s Evostar apochromatic doublet refractors are the perfect blend of superior extra-low dispersion glass and affordability. The Evostar refractor lens assembly utilizes a proprietary combination of matched lenses, delivering tack-sharp stars with charcoal-black, contrast-rich skies. All ED glass elements are fluorite-based and feature our proprietary Metallic High-Transmission Coatings™ (MHTC™), virtually eliminating all false color while triple-baffles prevent stray light from affecting your photography. Like the optics, the tube is beautifully crafted using aluminum and finished with a black diamond metal-flake finish.
Using a doublet refractor instead of a triplet has some advantages: less glass means less weight, less weight means a less expensive telescope, so you can dedicate more money for your camera or laptop while benefiting from a lightweight astrophotography rig.
The Evostar 150DX # S11195 comes in a foam-lined aluminum case with tube rings and D-style dovetail plate. This DX version also includes a beefy 3.4" Helinear rack & pinion focuser.
Specifications:
Optical Info:
- Optical Design: ED Doublet
- Lens Coatings: Fully Multi-Coated
- True Aperture (mm): 150
- Primary Aperture (mm): 150
- F/Ratio: 8
- Focal Length (mm): 1200
- Dew shield OD: 180mm
Observational Info:
- Dawes Limit: 0.77
- Rayleigh Limit: 0.93
- Limiting Mag.: 13.3
- Minimum Magnification: 21
- Maximum Magnification: 295
- Light Gathering (compared to next size down): 71%
General Info:
- Focuser: 3.4" Dual Speed R & P
- OTA Length (Retract/Ext.): 50.5"
- OTA Outer Diameter: 7.1"
- OTA Weight (with accessories): 22
Accessories:
- Mounting Accessories: Rings/D-Rail
- Included Case: Yes
- Corrector: No (optional)
Other Information
- Country of Manufacture: China
