Lunt Solar Systems - 50mm Ha Etalon-Filter-System with B1800 blocking filter for 2 inch PREORDER NOW!!!

Introducing the LS50 Hydrogen-alpha system. To kick off the new company we are offering the 50mm aperture (no central obstruction)
integrally tuned etalon for use on any customer supplied refractor. System includes the B1800 blocking filter which provides full
disk images on telescopes up to 1620mm focal length. Larger blocking filters suitable for longer focal length telescopes are also
available options.

Because the LS50 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 ~<0.55 (dependant upon scope) allowing for higher
resolution viewing and/or imaging.

Delivered with order:
• Main Filter
• Blocking Filter (for 2 inch eyepiece-holder)
• Transport case

B1800