SV160 SVBONY S-II 1.25" 7 nm Astrophotography Filter Refractor Mount Designed for Heavy Light Pollution

Designed for Heavy Light Pollution (Up to Bortle 8)

Filter Drawer MAX

NGC 4151 The Eye of Sauron–Emilio Frangella

5ppm Adjacent channel selectivity( w/n) 60dB@12

SV160 SVBONY S-II 1.25" 7 nm Astrophotography Filter Refractor Mount Designed for Heavy Light PollutionSVBONY S II 1. 25" SV160 7 nm Astrophotography Filter The SVBONY S II 1. 25" SV160 7 nm Filter is a professional astrophotographic filter designed to isolate the ionized sulfur (S II) emission lines at 671. 6 nm and 672. 4 nm. With a narrow Full Width at Half Maximum (FWHM) of 7 nm, it delivers outstanding contrast and precision when imaging emission nebulae under light polluted skies. Main Features High precision bandpass filter optimized for the S