1.25" LRGB Filter Set

The Optolong LRGB Filter Set comes with four 1.25" mounted filters, including Red, Green, Blue, and Luminance. Designed for maximum contrast and with extremely high gradients for clear differentiation of colors, the LRGB filter set divides the spectrum into its components: red, green, blue and luminance. The OIII emission overlaps on blue and green filters with maximum transmission to allow high efficiency and natural color imaging, while the gap between green and red filters serves to block out the primary Sodium (Na) light pollution line at 589nm and improves color balance and separation. Designed for de-bayered monochrome CCD and CMOS cameras, the filters work great for both planetary and deep-sky imaging.