H-alpha filters


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Lunt LS50FHA/B1200D2 H-Alpha solar filter




Lunt LS50FHA/B1200D2 Etalon H-Alpha solar filter features 50 mm aperture, bandwidth 0.75A and B1200D2 blocking filter for telescopes up to 1080 mm focal legnth with 50.8 mm focuser.

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2 760,00 €

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LUNT LS50FHa/B1200d2 H-alpha solar filter

50mm H-alpha solar filter system with B1200 blocking filter, for front mounting at telescopes with 2" focuser, and up to 1080mm focal length.

The LS50FHa H-alpha Etalon filter system with 50mm aperture (no central obstruction) for use on any refractor and many other telescopes. Because the LS50FHa has an estimated bandwidth of <0.75 Angstrom it is capable to providing high contrast views of both solar surface and edge detail (prominences).
The system includes the B1200 blocking filter, which is usable for telescopes up to 1080mm focal length. Larger blocking filters suitable for longer focal length are also optional available. The blocking filter is installed in a 90° star diagonal for 2" focuser. This diagonal is equipped with a reception for 1.25" eyepieces and a T2 camera connection.

Adding an additional available double-stack Etalon system will reduce the bandwidth to ~<0.55 Angstrom.

Technical data:
• Aperture: 50 mm
• No central obstruction
• Bandwidth: <0.75 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
• Blocking filter: B1200 in diagonal for 2" focuser
• Maximum focal length of telescope: 1080 mm

Delivered by order:
• LS50FHa solar filter
• B1200 Blocking Filter (for 2" focuser) in star-diagonal
• Transport case
• Instruction manual

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