Sky-Watcher ProED 120mm f/7.5 Doublet APO Refractor (OTA only)

Sky-Watcher ProED 120mm f/7.5 Doublet APO Refractor (OTA only)

Sky-Watcher ProED 120mm f/7.5 Doublet APO Refractor (OTA only)

B&H # SKPRO120EDAP MFR # S11130
Sky-Watcher ProED 120mm f/7.5 Doublet APO Refractor (OTA only)

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Product Highlights

  • 120mm Apochromatic Refractor
  • 900mm Focal Length, f/7.5 Focal Ratio
  • Proprietary MHC Multicoated Optics
  • Schott BK-7 and FPL-53 ED Glass
  • 2" Crayford Focuser with 1.25" Adapter
  • 20mm and 5mm Eyepieces, 90° Diagonal
  • 8x50 RA Erect-Image Finderscope
  • Vixen-Style Dovetail Plate & Cradle-Ring
  • Foam-Lined Aluminum Carrying Case
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Price:  $1,549.00

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  • 1Description

The ProED 120mm f/7.5 Doublet APO Refractor from Sky-Watcher features a doublet apochromatic lens system with Extra-low Dispersion (ED) glass and Sky-Watcher's proprietary photon anti-rejection Metallic High-Transmission Coatings (MHC) on all air-to-glass optical surfaces. This combination of glass, lenses, and coatings virtually eliminates chromatic aberrations for clear and bright high-contrast images with true color rendition. This is a versatile optical tube assembly (OTA) that is well suited for wide-field astronomical observation of prominent nebulae, star clusters and galaxies, or can be used as an astrograph for sky photography, a terrestrial spotting scope or telephoto lens. The larger 120mm aperture of this ProED model not only increases image brightness over the smaller 80mm and 100mm versions, it improves resolution and contrast.

A mounting cradle-ring clamps over OTA and allows the user to adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balance, while avoiding interference with other equipment. The scope is offered without a mount or tripod, but a Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle.

Its two-speed Crayford-style focuser helps make fine-focusing fast and precise without backlash. The ProED comes with several accessories to help you get observing faster and easier. First, are two long eye relief eyepieces that produce 30 and 120x magnification, a 90° star diagonal for more comfortable viewing, and a large 8x50 erect-image finderscope to make finding your celestial objects faster and easier. Finally, Sky-Watcher provides a foam-lined aluminum carrying case to safely store and transport the OTA.

Optical Performance
  • 120mm objective lens
  • 900mm focal length
  • Focal ratio: f/7.5
  • Refractor-style optical design
  • Extra-low Dispersion (ED) glass
  • Apochromatic doublet lenses eliminate chromatic aberrations for true color rendition and enhanced contrast
  • Proprietary anti-reflection Metallic High-Transmission Coatings (MHC) multicoatings on all optics
  • Bbjective lens cell is light-baffled to reject stray, unfocused light
  • Baffled draw tube for enhanced contrast
  • OTA interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane
  • Resolution, Rayleigh: 1.16 arc sec
  • Resolution, Dawes: 0.97 arc sec
Focuser
  • 2" diameter focuser
  • Dual-speed Crayford-style
  • Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
  • Includes 1.25" adapter for using smaller eyepieces and accessories
Included Accessories
  • Two 1.25" barrel diameter eyepieces:
    • 5mm eyepiece: Yields 180x magnification
    • 20mm eyepiece: Yields 45x magnification
  • Diagonal:
    • 90° angle
    • Dielectric coatings for greater than 99% reflectivity
    • Star diagonal corrects images vertically, but not horizontally
  • 8x50 erect-image finderscope with bracket
  • Foam-lined hard aluminum carrying case
Mount
  • User-supplied mount and tripod required
  • Vixen-style dovetail plate included
  • Compatible with any alt-az or equatorial mount with a Vixen-style saddle
  • Cradle-ring assembly for plate allows the scope orientation to be changed based on mount configuration
  • Integrated 1/4"-20 piggy-back camera mount for wide-field astrophotography
  • Quick-release system for fast setup and breakdown
UPC: 812556011245
In the Box
Sky-Watcher ProED 120mm f/7.5 Doublet APO Refractor (OTA only)
  • 5mm Eyepiece
  • 20mm Eyepiece
  • 2" 90&Deg; Diagonal
  • 1.25" Eyepiece Adapter
  • 8x50 Finderscope with Bracket
  • Mounting Plate and Cradle Ring Assembly
  • Foam-Lined Aluminum Carrying Case
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Optical Design Apochromatic Refractor
    Aperture 4.7" / 120 mm
    Focal Length 900 mm
    Focal Ratio f/7.5
    Eyepiece Barrel Diameter 2"
    1.25" with included adapter
    Diagonal 90° Star
    Finderscope 8x50 erect-image
    Tripod None
    Mount Type Vixen-style dovetail
    Length 37.8" / 96.0 cm
    Weight 11.3 lb / 5.1 kg
    Packaging Info
    Package Weight 34.0 lb
    Box Dimensions (LxWxH) 44.0 x 15.0 x 14.0"

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