... aluminum/optical glass 2.wavelength 680nm 720nm 850nm 3.black color Camera Accessories Stppo 77mm Infrared Infra-Red IR Filter 680nm Feature1 ... , 49, 52, 55, 58, 62, 67, 72, 77mm4.Unique display color box and double protection5.Small order,mix diameter and mix ... . It is designed for use with black and white and color films that are sensitive to certain values of infrared light ...