Sky-Watcher EvoStar 72ED 72mm f/5.8 Apo Refractor
Availability: Item has been discontinued by the manufacturer
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- Doublet apochromatic optical design
- Two-element, air-spaced optical assembly minimizes false color
- 72mm aperture, 420mm focal length, f/5.8 focal ratio
- 2-inch dual-speed Crayford-style focuser
- Aluminum tube coated with glossy, black diamond metal-flake finish
- Included accessories: tube rings, a Vixen-style dovetail and a foam-lined aluminum case
- Focuser output thread = M54
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 the internal baffle helps 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 72ED # S11180 comes in a foam-lined aluminum case with tube rings and a V-style dovetail plate.
Specifications:
Optical Info:
- Optical Design: ED Doublet
- Lens Coatings: Fully Multi-Coated
- True Aperture (mm): 72
- Primary Aperture (mm): 72
- F/Ratio: 5.9
- Focal Length (mm): 420
- Dew shield OD: 89mm
Observational Info:
- Dawes Limit: 1.61
- Rayleigh Limit: 1.94
- Limiting Mag.: 11.7
- Minimum Magnification: 10
- Maximum Magnification: 142
General Info:
- Focuser: 2" Dual Speed Crayford
- OTA Length (Retract/Ext.): 16.5"
- OTA Outer Diameter: 3.5"
- OTA Weight (with accessories): 4.3
Accessories:
- Mounting Accessories: Rings/V-Rail
- Included Case: Yes
- Corrector: No (optional)
| Product Banner Type | discontinued |
|---|---|
| Free Shipping Graphic | Free Contiguous US Shipping |
| Telescope Focal Length | 401 - 500mm |
| Hide Found a better Shipped Price on Frontend? | No |
- Doublet apochromatic optical design
- Two-element, air-spaced optical assembly minimizes false color
- 72mm aperture, 420mm focal length, f/5.8 focal ratio
- 2-inch dual-speed Crayford-style focuser
- Aluminum tube coated with glossy, black diamond metal-flake finish
- Included accessories: tube rings, a Vixen-style dovetail and a foam-lined aluminum case
- Focuser output thread = M54
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 the internal baffle helps 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 72ED # S11180 comes in a foam-lined aluminum case with tube rings and a V-style dovetail plate.
Specifications:
Optical Info:
- Optical Design: ED Doublet
- Lens Coatings: Fully Multi-Coated
- True Aperture (mm): 72
- Primary Aperture (mm): 72
- F/Ratio: 5.9
- Focal Length (mm): 420
- Dew shield OD: 89mm
Observational Info:
- Dawes Limit: 1.61
- Rayleigh Limit: 1.94
- Limiting Mag.: 11.7
- Minimum Magnification: 10
- Maximum Magnification: 142
General Info:
- Focuser: 2" Dual Speed Crayford
- OTA Length (Retract/Ext.): 16.5"
- OTA Outer Diameter: 3.5"
- OTA Weight (with accessories): 4.3
Accessories:
- Mounting Accessories: Rings/V-Rail
- Included Case: Yes
- Corrector: No (optional)
| Product Banner Type | discontinued |
|---|---|
| Free Shipping Graphic | Free Contiguous US Shipping |
| Telescope Focal Length | 401 - 500mm |
| Hide Found a better Shipped Price on Frontend? | No |