Antlia 3nm Narrowband H-Alpha (Ha)/ Sulfur II (SII) /Oxygen III (OIII)Pro Filter 2" Mounted（Single Piece）

Introducing the Antlia 3nm Narrowband H-Alpha (Ha)/ Sulfur II (SII) /Oxygen III (OIII)Pro Filter, designed for 2" mounted astrophotography filters. With its 3nm narrowbandpass filter, it enables selective light transmission of the H-alpha, Sulfur II, and Oxygen III spectral lines while blocking out other light pollution sources, enhancing the visibility of nebulae, supernovae remnants, and other deep-sky objects. The Antlia 3nm Narrowband H-Alpha (Ha)/ Sulfur II (SII) /Oxygen III (OIII)Pro Filter is crafted with high-quality glass material and features an anti-reflection coating, ensuring maximum light transmission, and improving contrast in astro images. The filter is easy to install and remove and comes in a single piece. With its sturdy design and excellent performance, the Antlia 3nm Narrowband H-Alpha (Ha)/ Sulfur II (SII) /Oxygen III (OIII)Pro Filter is an ideal choice for astrophotography enthusiasts looking to capture stunning images of the night sky.