LUNT LS50FHa H-alpha double-stack solar filter

50mm H-alpha double-stack solar filter, for all LS50FHa filter-systems and LS60THa/LS60MT telescopes.

This double-stack Etalon is compatible to all Lunt Solar Systems LS50FHa filter systems and LS60THa / LS60MT telescopes. Adding this additional double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom (dependent upon the used telescope). So you will have much more contrast and more details on the sun will be visible. Suitable for Lunt50THa with an additional adapter.

Without blocking filter! Only for use as a double-stack filter, or together with an additionally available blocking filter. If the filter is used only single stacked together with an optional blocking filter, then the bandwidth is <0.75 Angstrom.

FEATURES

• Aperture: 50 mm
• No central obstruction
• Bandwidth double stacked: <0,55 Angstrom
• Tuning: tiltable Etalon
• Housing diameter: 95 mm
• Length: 73 mm
• Weight: 0.7 kg
• Front thread: M90x1 female thread
• Rear thread: M90x1 male thread

SCOPE OF DELIVERY

• LS50FHa solar filter
• Transport case
• Instruction manual