SVBONY SV227 Telescope Filter, 2 inches OIII 5nm CCD
SVBONY SV227 Telescope Filter, 2 inches OIII 5nm CCD Narrowband Filter for Deep Sky Photography SVBNOY OIII 5nm 2" Filter greatly enhances contrast and allows high-contrast imaging even in areas with strong light pollution OIII 5nm 2" Filter is designed to deliver 90% transmission at the 500.7nm line which provides you with well defined nebulae structures 300-1000nm wavelength range; the SVBONY OIII 5nm 2" Filter transmits a 5nm bandwidth of light that is centered at 500.7nm 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece SVBONY OIII narrow band filter reduces other...