ENHANCED IMAGE QUALITY - Achieve superior contrast with the 9nm half bandwidth, isolating the O-III emission line for breathtaking celestial views and detailed planetary observation. MAXIMUM LIGHT TRANSMISSION - The Super-G CMOS design ensures high transmission rates at the 502nm central wavelength, optimizing light capture for faint deep-sky objects and detailed views. REDUCED HALOS & REFLECTIONS - Benefit from the Reflex-Blocker coating, which minimizes internal reflections and halos, delivering clearer, sharper images with enhanced detail and clarity. DURABLE AND RELIABLE - The 2' mounted filter with LPFC 6mm cell and 2mm thickness is crafted for long-term use, ensuring consistent performance and protection for your valuable optics.