Lunt LS50FHa/B1800d2 H-alpha solar filter
  • Lunt LS50FHa/B1800d2 H-alpha solar filter

Lunt LS50FHa/B1800d2 H-alpha solar filter

Lunt LS50FHa/B1800d2 H-alpha solar filter

50mm H-alpha solar filter system with B1800 blocking filter, for front mounting at telescopes with 2" focuser, and up to 1620mm focal length.

£2,848.00
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Lunt LS50FHa/B1800d2 H-alpha solar filter

50mm H-alpha solar filter system with B1800 blocking filter, for front mounting at telescopes with 2" focuser, and up to 1620mm 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 B1800 blocking filter, which is usable for telescopes up to 1620mm 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.

FEATURES
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: B1800 in diagonal for 2" focuser
Maximum focal length of telescope: 1620 mm
SCOPE OF DELIVERY
LS50FHa solar filter
B1800 Blocking Filter (for 2" focuser) in star-diagonal
Transport case
Instruction manual

0550205

Data sheet

Optical Design
Hydrogen Alpha (HA)
Aperture
35mm
Focal Length
400 mm
Optical Tube Length (mm)
13 inch

Specific References

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