The LS50 Hydrogen-alpha filter system has a clear 50mm aperture (no central obstruction) integrally tuned etalon for use on any refractor telescope. The LS50 has an estimated bandwidth of <0.75 Angstrom and therefore capable of providing high contrast views of both Prominence and Chromosphere detail.
The system includes a B1200 blocking filter, which is suitable for most telescopes up to 1080mm focal length. Larger blocking filters suitable for longer focal length are also optionally available. Please ask us for details as blocking filter size is affected by the application of the scope i.e. observing or imaging.
The blocking filter is installed in a 90° star diagonal for use with a 2" focuser. This diagonal is equipped with a reception for 1.25" eyepieces and a T2 camera connection. Adding an additionally available Double-Stack etalon filter will reduce the bandwidth to ~<0.55 Angstrom and offer higher contrast views of the Chromosphere.
Specifications
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 Recommended Focal Length of Telescope: 1080 mm
