The SBIG 50mm Round Deep Sky Filter Set are compatible with FW8S-STXL filter wheels, as well as the older STXL self-guided filter wheels. They are specifically built to SBIG's exact specifications. These filters are also parfocal, avoiding the need for unnecessary refocusing. Your deep-sky images with these filters will be the envy of even the most seasoned astrophotographers!

• The 50mm Deep Sky LRGB Package include 1 of each of the following filters (7 total): Ha, SII, OIII, Luminance (L), Red (R), Green (G), and Blue (B)