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

Together with one-shot color astronomical cameras

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

With its precision machined aluminum construction and black anodized finish

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