Hoya 77mm Close-Up Filter Set (+1 +2 +4) Multi Coated Diopters Kit contains +1,+2, +4 Filters - Most Cost-Effective Way to Shoot Close Reduces Minimum Focal Length of Lens Produces Shallower Depth of Field Filters Can Be Used Alone or Combined Hoya Multi-Coating (HMC) Optical Glass - Reduces flares and ghosting - Made in Japan