Produits de la même famille
Why Purchase from All-Star Telescope?
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Description du produit
An Elegant Balance of Value and Performance
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 internal baffle prevent stray light from affecting your photography. Like the optics, the tube is beautifully crafted using aluminum and finished with a white 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 mount, camera, or accessories while benefiting from a lightweight astrophotography rig.
Sky-Watcher Evostar EDX refractors provide the finest images obtainable in their design class. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher Evostar EDX refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.
Evostars come in a foam-lined aluminum case with accessories, including: 2.8-inch Crayford-style focuser, tube rings, camera angle adjuster, thread-on dew shield, focuser adapter ring, spacer, 1.25 to 2-inch adapter, and a V-style dovetail.
Razor Sharp Optics
Sky-Watcher Evostar EDX refractors use the finest extra-low dispersion glass available. This results in the best color correction for an ED doublet lens.
Versatility and Affordability
The Evostar EDX line is designed to meet the needs of both the discerning imager and the experienced observer while keeping finances in mind.
A Complete Range of Apertures
Evostar EDX comes in a wide selection of apertures to fit the needs of the contemporary amateur astronomer, from the compact 80mm for your grab-and-go setup to the generous 120mm for high-resolution work, you will find what you're looking for.
EvoGuide 50mm Minigraph
The 50mm Evoguide is Sky-Watcher's smallest ED APO refractor, equally comfortable as a high-resolution guidescope or, when paired with its matched field flattener, as an ultra-compact astrograph.
Specifications
| SKU | S11135 |
| UPC | 810098970822 |
| Optical Specifications | |
|---|---|
| Optical Design (achro or apo) | Apochromatic |
| Lens Coating (fully multi-coated)? | Fully multi-coated |
| Lens design (doublet, triplet or Quad) | ED Doublet (Air Spaced) |
| ED Glass | FPL-53 |
| Optical Quality | Diffraction limited (1/4 wave) |
| Collimatable Cell | No (Self Aligning Cell) |
| Primary Aperture (mm) | 80mm |
| F/Ratio | 7.5 |
| Focal Length (mm) | 600mm |
| Included Corrector Specifications | |
| Optional Corrector/Reducer Specifications | |
| Corrector Name | Evostar 80ED 0.85x reducer/flattener |
| Optional Corrector/Reducer SKU | S20200 |
| Reduction (reducer only) | 0.85x |
| Corrector - insertable or thread-on | Thread on |
| Corrector Thread size | M56x1 female/48mm male |
| Corrector Back Focus | 55mm |
| Corrector illuminated field | 43mm |
| F/Ratio with reducer installed | 6.375 |
| Focal Length with reducer installed | 510mm |
| Corrector adapter needed? | Included with telescope |
| Corrector allow for 2" filters? | No* (Adapter needed) |
| Mechanical Specifications | |
| Focuser Type | Crayford |
| Focuser Size | 2.8" |
| Focuser: Dual or Single Speed | Dual speed (11:1 ratio) |
| Focuser: Rotatable? | No |
| Camera Angle Adjuster? | Yes |
| Compression Ring | Yes |
| Retractable dew shield? | No* (Removeable (thread-on)) |
| OTA material | Aluminum |
| Optical Tube length Retracted/Extended (inches) | 22" / 18.7" |
| Dew Shield diameter (mm) | 4.84" (123mm) |
| Optical Tube weight with included accessories (pounds) | 7.3 pounds |
| Mounting Rings? | Yes |
| Dovetail type | V-style |
| Dovetail length | 8" |
| Mounting ring threads (upper holes) | 1/4-20 |
| Accessories | |
| Eyepieces | No |
| Diagonal | No |
| Mounting Hardware | Mounting Rings/Dovetail |
| Camera Adapter | No |
| Flatter or Corrector | No |
| Additonal Accessories | No |
| Collimation eyepiece | None |
| Included finder | No |
| Manual | Yes |
| Case | Yes |
| Shipping Weight | 19.5 pounds |
| Shipping Dimensions/Weight | 29.25" x 15" x 12" |
| Observational Info | |
| Dawes Limit | 1.45 |
| Rayleigh Limit | 1.75 |
| Limiting Magnitude | 12 |
| Minimum Magnification | 11x |
| Maximum Magnification | 157x |
| Light Gather (compared to next size down) | 24% (compared to 72ED) |
| Intended use | Visual/Imaging |
What can I see with a Sky-Watcher Evostar 80EDX Super APO Triplet | S11135?
Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.
Jupiter with
25mm Eyepiece - 24x Magnification
(Sold Separately)
Jupiter with
10mm Eyepiece - 60x Magnification
Sold Separately
Jupiter with
5mm Eyepiece - 120x Magnification
Sold Separately
Moon with 25mm Eyepiece
24x Magnification
(Sold Separately)
Moon with 10mm Eyepiece
60x Magnification
Sold Separately
Moon with 5mm Eyepiece
120x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
17x Magnification
Sold Separately
Andromeda with 25mm Eyepiece
24x Magnification
(Sold Separately)
Andromeda with 10mm Eyepiece
60x Magnification
Sold Separately
