Antlia Hydrogen Alpha (Ha) 2.5nm Ultra Narrowband 36mm Filter (ANT-25-HA-36) V2 5mm PL3304805 + PL3304807 +

5mm PL3304805 + PL3304807 + PL3304800 13 5mm M48 extension+7mm M48 extension+M48 spacer 1mm PL3304805 + PL3304807 + PL3304801 13

Credit: Vincent Cheng

large aperture astrograph

Indigo OAG supports the 62mm through hole pattern for direct connection with latest CMOS cameras and Filter Wheels

Antlia Hydrogen Alpha (Ha) 2.5nm Ultra Narrowband 36mm Filter (ANT-25-HA-36) V2 5mm PL3304805 + PL3304807 +The Antlia SHO 2. 5nm Ultra series filters are made with quartz glass and undergo precisely controlled coating processes to ensure optimal performance. The 2. 5nm Ultra series is designed with a FWHM (full width half maximum) of 2. 5nm +0. 3 0. 1nm and a transmission efficiency >92 95% at the Central Wavelength. The quartz glass possesses an ultra low thermal expansion coefficient with outstanding thermal and mechanical properties. When combined with