60mm Double stack 12mm BF FT pressure tuning

60mm Double stack 12mm BF FT pressure tuning

FEATURES:

  • New, patented etalon technology and different components.
  • Prone to less thermal disturbances and de-contacting.
  • Stylized pearl white paint with black anodized trim.
  • Clamshell mount, 2" 10:1 Crayford focuser and padded hard case included!

DESCRIPTION:

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 band pass. The scope is offered here as a double-stacked system with an internal etalon and removable external front etalon that reduces the band pass 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 Feather Touch rack-and-pinion focuser and accepts 1.25" eyepieces and accessories for visual observation with a wide field of view, or imaging. Its rack-and-pinion Feather-Touch focuser features a dual-speed design with a 10:1 fine-focus for precision focusing. Rack-and-pinion focusers are generally better for handling heavier loads, such as larger imaging systems. 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.

 

  • Aperture- 60mm
  • Emission line- H-alpha
  • Blocking or ERF aperture- 12mm
  • Bandwidth- <0.5 Angstrom at 656 nm
  • Telescope Focal Length- 500mm
  • Focuser- 2” Feather Touch
  • Focal ratio- f/8.3
  • Included tuner
  • Optical tube weight- 3.0 kg