Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Crayford Focuser, 12mm Blocking, Pressure Tuned)

Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Crayford Focuser, 12mm Blocking, Pressure Tuned)

Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Crayford Focuser, 12mm Blocking, Pressure Tuned)

B&H # LU60T50ES12C MFR # LS60THADS50/B1200CPT
Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Crayford Focuser, 12mm Blocking, Pressure Tuned)

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Product Highlights

  • 60mm Objective
  • 500mm Focal Length, f/8.3 Focal Ratio
  • Hydrogen-Alpha Solar Filter
  • Double-Stacked Etalon
  • <0.5 Angstrom at 656 nm
  • Pressure Tuned
  • 12mm Star Diagonal Blocking Filter
  • 2" Crayford Focuser
  • Integrated Mounting Base
  • Foam-Lined Hard Carrying Case
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  • 1Description

Enjoy rarely-seen views of the Sun's surface and rim with the Lunt Solar Systems' 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope. This dedicated solar scope features a 60mm objective lens , a 500mm focal length, and an internal etalon with a <0.75 Angstrom bandpass. The scope is offered here as a double-stacked system with an internal etalon and removable external front etalon that reduces the bandpass to <0.5 Angstrom for increased contrast and enhanced views of the seething caldron of the surface and rim activity. It comes with a 12mm blocking filter in a star diagonal configuration that fits in the Crayford-style focuser and accepts 1.25" eyepieces and accessories for visual observation with a wide field of view, or imaging. Its dual-speed Crayford-style focuser uses a toothless friction system that allows for super-fine precision focusing without backlash. This solar scope comes without a mount or tripod, but is outfitted with a mounting base that has a 1/4"-20 threads for attaching it to most tripods or compatible mounts. For safe transportation and storage, two foam-lined hard carrying cases are included, one for the OTA and a smaller one for the front filter.

Optical Performance
  • 60mm aperture
  • f/8.3 focal ratio
  • 500mm focal length
  • Refractor-style optical path
  • Internal etalon with tune adjustment allows for a <0.75 Angstrom bandpass at 656nm$
  • Removable front etalon lowers bandpass to <0.5 Angstrom for rich contrast and enhanced surface details
  • True Doppler pressure tuning allows for a shift into and away from the user for enhanced viewing
Blocking Filter
  • 12mm aperture
  • Use for visual observation with a larger field of view, or imaging
  • Fits into focuser and accepts 1.25" eyepieces
  • Star diagonal configuration
Focuser
  • 2" diameter
  • Crayford-style design
  • Dual-speed with 10:1 fine-tuning for precision focusing
  • Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
UPC: 814393021579
In the Box
Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Crayford Focuser, 12mm Blocking, Pressure Tuned)
  • 12mm Blocking Eyepiece Filter (2" Star Diagonal)
  • 50mm Compact Double-Stack Filter for LS50THa Solar Telescope
  • 2 x Dust Cap
  • Foam-Lined Hard Carrying Case for OTA
  • Foam-Lined Hard Carrying Case for Filter
  • Limited Five-Year Warranty
  • Table of Contents
    • 1Description
    Objective Diameter 60 mm
    Focal Length 500mm
    Focal Ratio f/8.3
    Bandpass <0.5 Angstrom at 656 nm
    Focuser 2" Crayford-style
    Finderscope None
    Mounting Integrated mounting base with 1/4"-20 thread
    Length Not specified by manufacturer
    Weight OTA: 6.6 lb / 3.0 kg
    Front etalon: 2.5 lb / 1.1 kg
    Packaging Info
    Package Weight 27.5 lb
    Box Dimensions (LxWxH) 26.4 x 26.4 x 12.8"

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