Orion 5563 1.25-Inch LRGB Astrophotography Filter Set These 1.25" imaging filters let you create dazzling three-step RGB astrophotos - just like the pros Red, blue, and green filters plus the haze-eliminating Luminance filter give stunning astrophotographic results Combining separate astrophotographs taken through these LRGB filters produces finer resolution and amazing color Filter set works well with any monochrome Orion Astronomical Imaging Cameras and Orion Filter Wheels Quality glass astrophotography filters and threaded anodized aluminum cells ensure durability