The F40-500.0-4-25.0M from CVI Laser Optics is a Optical Filter with Wavelength 400 to 749 nm, Center Wavelength(CWL) 500 nm, Bandwidth (FWHM) 40 ± 8 nm, Blocking Wavelength 1200 nm, Filter Diameter 25 mm. More details for F40-500.0-4-25.0M can be seen below.