Lunt 60mm Double Stack Etalon filter for LS60THa - LS60FHa
The Double-Stack Etalon Solar-Filter for all LS60FHa Filter-Systems and LS60THa Telescopes.
Double-Stack Etalon for all LS60FHa filter systems and LS60THa telescopes. Adding this additional Double-Stack etalon system will reduce the bandwidth to ~<0.5 Angstrom (dependant upon used telescope) . So you will have much more contrast and more details on the sun will be visible
•Aperture: 60 mm
•No central obstruction
•Bandwidth double stacked: <0,5 Angstrom
•Tuning: tiltable Etalon
•Housing diameter: 95 mm
•Length: 85 mm
•Weight: 0.85 kg
•Front thread: M90x1 female thread
•Rear thread: M90x1 male thread
Without Blocking Filter! Only for use as double-stack filter, or together with a additional available blocking filter. If the filter is used only single stacked together with a optional blocking filter, then the bandwidth is <0.7 Angstrom.