HOYA 67mm Green G (X1) Lens Filter for Black & White Photography HOYA Green G (X1) is a specialized colour filter, primarily used in black-and-white photography to manipulate contrast and tonal values. It can also be used for creative effects in colour photography *Please check size before ordering. This can be found on the lens cap, instructions, box, or the internet* The filter is in good condition and ready for use.
eBay