Alpine Astronomical Baader Hyperion 8-24 mm Mark IV Zoom Eyepiece (1.25"/2")

Alpine Astronomical Baader Hyperion 8-24 mm Mark IV Zoom Eyepiece (1.25"/2")

Alpine Astronomical Baader Hyperion 8-24 mm Mark IV Zoom Eyepiece (1.25"/2")

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Product Highlights

  • 8-24mm Zoom Focal Length
  • Phantom Coating Group Multi-Coatings
  • 7-Element/4-Group Flat-Field Lens Design
  • 1.25" and 2" Diameter Barrel Options
  • 2" Standard SCT Visual Back Adapter
  • Parfocal through Entire Zoom Range
  • Three Interchangeable Eyecups
  • T-Mount for Optional Camera T-Ring
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Alpine Astronomical HYP-ZOOM overview

  • 1Description

Outfitted with a wide and useful focal length range that is ideal for all kinds of astronomical observation and astrophotography, the Alpine Astronomical Baader Hyperion 8-24 mm Mark IV Zoom Eyepiece will be an invaluable addition to your telescope kit.

Its performance starts with a 7-element/4-group flat-field lens design that is treated with Phantom Coating Group multi-coatings. These features work together to deliver clear and bright high-contrast views with edge-to-edge sharpness without distortion or astigmatism. A simple rotating selection system allows users to run through the focal length range with positive click-stops at each setting, and for ease-of-use the eyepiece is parfocal so there will be little to no need to refocus when moving from one focal length to the next.

The Mark IV has been engineered for use on a wide variety of gear and comes with nosepieces to fit standard 1.25" drawtubes and accessories with the option to swap it for a 2" nosepiece or an adapter to thread onto standard 2" Schmidt-Cassegrain telescope (SCT) visual backs. Removing the eyecup reveals M43 T-mount threads that accept optional camera-specific T-rings for projection astrophotography techniques. For comfortable viewing, the eyepiece comes with three interchangeable eyecups: a fold-down rubber version, a winged model, and a large twist-up adjustable option.

From the moon to the planets to deep sky objects, the Mark IV zoom eyepiece provides versatility that is easy to use.

Optical Performance
  • 7-element/4-group flat-field lens design maintains edge-to-edge sharpness
  • Phantom Coating Group multi-coated optics maximize light transmission for improved contrast and clarity
  • All focal length options are parfocal, requiring little to no refocusing when moving through the entire zoom range
Variable Focal Length
  • Change magnification by selecting a longer (low power) or shorter (high power) focal length
  • Selectable focal length for 8mm, 12mm, 16mm, 20mm, and 24mm
  • Field of view, eye relief, and field stop distance change based on focal length setting
  • Positive click-stops provide tactile feedback for each focal length selection
Telescope Adapters
  • 1.25" nosepiece fits the most common-size drawtubes and accessories, threaded for standard 1.25" filters
  • 2" nosepiece allows it to fit larger drawtubes and focusers, threaded for standard 2" filters
  • Standard 2" SCT visual back female threads for direct connection to optical tube assembly
  • Spotting scope adapter: For use on those spotters that accept astronomical eyepieces, it provides 4mm additional back focus to allow it to achieve the proper focus at infinity
Camera Connections
  • M43 photo/video thread on top of the eyepiece to directly attach most video cameras
  • Allows attachment of any desired DSLR or T-2 accessory by means of the optional T-rings and camera-specific T-mounts
  • Remove eyecup to reveal adapter threads
  • Optional extension tubes may be required for full-frame and APS-C cameras
Eyecup Options
  • Winged rubber eyecup blocks peripheral terrestrial light to improve contrast and eliminate distractions
  • Fixed folding rubber eyecup allows easy use with or without eyewear
  • Large adjustable twist-up eyecup provides precise eye relief setting
In the Box
Alpine Astronomical Baader Hyperion 8-24 mm Mark IV Zoom Eyepiece (1.25"/2")
  • Soft Pouch
  • Winged Eyecup
  • Fold-Down Eyecup
  • Adjustable Eyecup
  • Telescope Adapter
  • Spotting Scope Adapter
  • 1.25" Nosepiece
  • 2" Schmidt-Cassegrain Adapter
  • 3 x Dust Cap
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Alpine Astronomical HYP-ZOOM specs

    Focal Length 8 - 24x
    Barrel Diameter 1.25", 2"
    Eye Relief 8mm focal length: 19mm
    12mm focal length: 18.2mm
    16mm focal length: 17.4mm
    20mm focal length: 16.7mm
    24mm focal length: 16.0mm
    Field Stop Diameter 8mm focal length: 9.5mm
    12mm focal length: 13.2mm
    16mm focal length: 16.2mm
    20mm focal length: 18.5mm
    24mm focal length: 20.1mm
    Apparent Field of View 8mm focal length: 68°
    12mm focal length: 63°
    16mm focal length: 58°
    20mm focal length: 53°
    24mm focal length: 48°
    Dimensions 4.0" / 101.5 mm
    Weight 10.2 oz / 290.0 g, with 1.25" adapter
    10.9 oz / 309.0 g, with 2" adapter
    Packaging Info
    Package Weight 1.1 lb
    Box Dimensions (LxWxH) 6.6 x 3.1 x 3.0"

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