Lunt - 35mm Ha Etalon Filter with B600 for 1.25 inch Focuser

H-alpha Single Pass Front Mount Etalon System for telescopes with 1.25" focuser and up to 540mm focal length.

Introducing the LS35 Hydrogen-alpha system. To kick off the new company we are offering the 35mm aperture (no central
obstruction) integrally tuned etalon for use on any customer supplied refractor. System includes the B600 blocking filter standard
which provides full disk images on telescopes up to 540mm focal length. Larger blocking filters suitable for longer focal length
telescopes are also available options.

Because the LS35 has an estimated bandpass of <0.75 Angstroms it is capable to providing high contrast views of both surface and
edge detail. Adding an additional etalon system will reduce the bandpass to ~<0.5 Angstroms.

Delivered with order:
• Main Filter
• Blocking Filter (for 1.25" focuser)
• Transport case

B600