Focus Scientific

Lunt Solar Systems 80mm ED Refractor OTA

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.

Features

  • 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

Specifications

  • 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