The Player One SII 7 nm 2″ Filter (S-Series) isolates the Sulfur-II emission line at 672.4 nm, enabling high-contrast narrowband imaging of emission nebulae and star-forming regions.
Key Features
CWL: 672.4 nm; Bandwidth: 7 nm
2″ format; M48x0.75 thread
≥ 90% transmission
SII 7nm narrowband 2 inch Filter S-series | AstroGear
