Lunt 60mm Ha Etalon Filter
The Lunt LS50FHa Solar Filter is a 50 mm aperture (no central obstruction) integrally tuned etalon for use on Lunt ED Refractors.
Lunt Solar will be introducing a larger selection of ED Telescopes that will meet your Solar needs for Daytime observing and meet the additional requirements of Nighttime observing. In this way you can use one scope for day and night.
Lunt Solar also offer a full line of dedicated Solar Telescopes.
LS50FHa Solar Filter systems requires a front-mounted filter and a rear mounted 2″ or 1.25″ blocking diagonal. Choose the blocking filter that best suits your telescope and your focuser size:
- B600 – Visual Use – Typical to the LS/ED80
- B1200 – Imaging and Visual Use – Typical to the LS/ED80
- B1200 – Visual Use – Typical to the LS/ED102
- B1800 – Imaging and Visual Use -Typical to the LS/ED102
Removing the LS50FHa Solar Filter for night use
The Lunt ED telescopes are designed to retrofitted with the LS50FHa Hydrogen-alpha Filter. In this way you can use the ED telescopes during the day. Notably, they are easily removable so that the Lunt ED scope can continue to be used for night observing.
Because the LS50FHa Solar Filter has an estimated bandpass of <0.70 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~<0.50. Allowing for higher resolution viewing and/or imaging. In addition, the part number LS50FHa is offered for this purpose or for those who already have a Lunt blocking filter.