Astroasis Filter Drawer Rings. Size:M-54 Ring -30dBm>1GHz

-30dBm>1GHz

Planetary and Lunar Imaging

Astronomik OIII 6nm CCD MaxFR 31mm Filter – Fast Optical Systems

dark current is almost like a straight a line

Astroasis Filter Drawer Rings. Size:M-54 Ring -30dBm>1GHzThread Ring Types The Astroasis filter drawer uses two types of interchangeable rings to configure either a male or female thread on each side of the drawer: M type rings Create a male thread. These are typically used on the camera side or when connecting to camera side accessories. F type rings Create a female thread. These are normally used on the telescope side to accept male threaded optical components. In total, six rings are included: M42, M48,