The Player One Hα 7 nm 2″ Filter (S-Series) is a narrowband filter isolating the Hydrogen-alpha emission line at 656.3 nm, ideal for deep sky nebula imaging with cooled mono cameras.
Key Features
Wavelength: 656.3 nm; Bandwidth: 7 nm
High transmission >90%
2″ mounted; M48x0.75 thread
Ha 7nm narrowband 2 inch Filter S-series | AstroGear
