Sky-Watcher 127mm f/13 Maksutov-Cassegrain Telescope (OTA Only)

Sky-Watcher 127mm f/13 Maksutov-Cassegrain Telescope (OTA Only)

Sky-Watcher 127mm f/13 Maksutov-Cassegrain Telescope (OTA Only)

B&H # SK127MMMCOTA MFR # S11520
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Product Highlights

  • 127mm Aperture Maksutov-Cassegrain OTA
  • 1500mm Focal Length, f/12 Focal Ratio
  • Limited-Diffraction Optical System
  • Fully Multi-Coated Optics
  • Internal Primary Mirror Focusing System
  • 2" 28mm Eyepiece, 90° Star Diagonal
  • 6x30 Finderscope
  • Vixen-Style Dovetail Plate
  • OTA Only: Mount and Tripod Required
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Price:  $435.00

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  • 1Description

Balancing aperture with manageability and representing the mid-range size in the series, the Sky-Watcher 127mm f/12 Maksutov-Cassegrain Telescope exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. The Maksutov optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but the optical benefits when coupled with the larger aperture and fully multi-coated optics, makes this an ideal scope for making detailed solar, lunar, and planetary observations, while being able to resolve bright deep sky objects like stars, clusters, galaxies, and nebulae.

The scope is outfitted with a large 2" visual back and, to get users started, Sky-Watcher includes a 28mm long eye relief eyepiece that produce a moderate magnification, and a 90° star diagonal for more comfortable viewing when the OTA pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users that have a platform, or want to use it as part of a dual-OTA set up for star-parties or observation/imaging rigs. It is outfitted with a Vixen-style dovetail plate for easy attachment onto many mounts. This OTA's compact form-factor belies its observation power and resolution and is ideally suited as a grab-and-go option for quick observation sessions or heading out to remote locations.

Optical Performance
  • 127mm aperture
  • f/12 focal ratio
  • 1500mm focal length
  • Front convex meniscus lens corrects spherical and chromatic aberrations, and comas (off-axis aberration) across the entire field of view
  • Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
  • Fully multi-coated optics maximize light transmission to improve brightness, color rendition, sharpness, and contrast
  • Resolution: 0.91 arcsec
  • Internal primary mirror focus
  • 2" diameter visual back accepts larger eyepieces and accessories
Mounting
  • Requires user-supplied mount and tripod
  • Vixen-style dovetail plate
  • Weight: 9.7 pounds including OTA, dovetail plate, finder, diagonal, and eyepiece
Included Accessories
    Eyepieces:
  • 2" barrel diameter
  • Accepts most 2" astronomical filters
  • 28mm eyepiece yields 54x power
  • Comfortable long eye relief
    Diagonal:
  • 2" snout and eyepiece holder
  • 90° angle places head in a comfortable viewing position
  • Star configuration corrects image horizontally for terrestrial use
    Finderscope:
  • Low 6x magnification provides a wide field of view for easier alignment and faster star-hopping navigation
  • 30mm aperture helps resolve dimmer objects that dot finders cannot
UPC: 050234115209
In the Box
Sky-Watcher 127mm f/13 Maksutov-Cassegrain Telescope (OTA Only)
  • 90° Star Diagonal
  • 28mm Eyepiece
  • 6x30 Finderscope
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Optical Design Maksutov-Cassegrain
    Aperture 127 mm
    Focal Length 1500mm
    Focal Ratio f/11.8
    Eyepiece Barrel Diameter 2"
    Diagonal 90° star
    2" snout and eyepiece holder
    Finderscope 6x30
    Tripod None
    Mount Type Vixen-style dovetail plate
    Power Source N/A
    Optical Tube Dimensions Not specified by manufacturer
    Weight 9.7 lb / 4.4 kg
    Packaging Info
    Package Weight 12.8 lb
    Box Dimensions (LxWxH) 28.1 x 9.7 x 9.2"
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