100mm Ha Etalon Filter with B1800 for 1.25" Focuser - LS100FHa1/B1800 Eyepiece Extension 25"/11"/14" EdgeHD Features

25"/11"/14" EdgeHD Features

From our Moon’s chiseled craters to Jupiter’s orderly cloud belts to the blue-white stars of the Orion Nebula popping against the complex misty cloud they call home

44" Extended

It combines 50mm of aperture with Lunt''s innovative pressure tuning system

or your 2" eyepiece or barreled accessory

100mm Ha Etalon Filter with B1800 for 1.25" Focuser - LS100FHa1/B1800 Eyepiece Extension 25"/11"/14" EdgeHD FeaturesAbout the Lunt 100mm Ha Etalon Filter w B1800 for 1. 25" Focuser This product number is for the Lunt H alpha Single Pass Front Mount Etalon System for telescopes with 1. 25" focuser and up to 1620mm focal length. Introducing the Lunt LS100 Hydrogen alpha System a 100mm aperture 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