Brand: Sky-Watcher

Sky-Watcher Evostar 80EDX Super APO Triplet | S11135

S11135

Brand: Sky-Watcher

Sky-Watcher Evostar 80EDX Super APO Triplet | S11135

S11135

  • Doublet apochromatic optical design
  • Two-element, air-spaced optical assembly minimizes false color
  • 80mm aperture, 600mm focal length, f/7.5 focal ratio
  • FPL 53 glass
  • 2.8-inch dual-speed Crayford-style focuser
  • Thread-on dew shield
  • Aluminum tube coated with glossy, white metal-flake finish
  • Included accessories: Tube rings, 2.8-inch Crayford-style focuser, camera angle adjuster, thread-on dew shield, focuser adapter ring, spacer, 1.25 to 2-inch adapter, and a V-style dovetail

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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

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