ZWO Duo-Band Ha & OIII Filter - 2" - DB2 Prime Focus Camera Adapters Manual clutches in both altitude

Manual clutches in both altitude and azimuth offer greater flexibility to manually point the telescope when powered off

Aperture: 4"

90 day for battery

Users of achromatic refractors will be particularly pleased with the performance using this additional filter

ZWO Duo-Band Ha & OIII Filter - 2" - DB2 Prime Focus Camera Adapters Manual clutches in both altitudeThe Duo Band filter offers an economical entry into the world of narrowband imaging with a color camera and can also offer a practical solution to imaging in light polluted urban areas. The 2" Duo Band is a dual narrowband filter primarily aimed at complementing color ZWO ASI cameras. The Duo Band filter is aimed at the astronomer who may already own a One Shot Color (OSC) camera and wants to image using narrowband techniques or emission objects