Lunt Solar Systems 80mm ED Refractor OTA

Lunt Solar Systems 80mm ED Refractor OTA

Due to high demand and global product shortages due to the pandemic, please call for availability.

Lunt ED Doublet optical tube assemblies come in three apertures: 70 mm, 80 mm, and 102 mm. These OTA's can be used for White Light, CaK, or nighttime use with the addition of the proper filters or accessories. Lunt Engineering is a division of Lunt Solar Systems, and these product can be used with Lunt Solar Systems solar products or for standard nighttime use.


  • Fully multi-coated ED doublet optics provide reduce chromatic aberration
  • Sturdy Aluminum optical tube
  • 2" Crayford-style 10:1 dual speed focuser provides precise smooth focus operation
  • Retractable lens shade
  • Includes carry case


  • Aperture: 80mm (3.1")
  • Focal length: 560mm
  • Focal ratio: f/7
  • Lens construction: ED Doublet
  • Focuser: 2" Crayford focuser with 10:1 fine-focus, brass compression ring
  • 1.25" reducer adapter with brass compression ring
  • Finderscope: sold separately
  • Focuser pre-drilled for finderscope adapter
  • Star diagonal: sold separately
  • Machined Aluminum mounting ring
  • 1/4" 20 tpi standard tripod thread on bottom of mounting foot
  • Length: 44.5cm (17.5") collapsed length
  • Weight: 2.5kg (5.5lbs)
  • Five year warranty