DIGI 77mm +1 +2 +4 +10 Close-Up Macro Filter Set with Pouch For Specific Canon Lenses (Models Specified In Details) + DIGI TECH Professional 5 Piece Cleaning Cloth These filters simply screw onto the lens, and will maintain resolution Great Picture clarity while magnifying image size These filters are double-threaded You can attach additional optics such as polarizers or skylight filters These macro filters are ideal for photographing small items and focusing in on details of coins, flowers, jewelry and insects