The 55mm Macro Filter Kit includes four close-up diopters at +1, +2, +4 and +10 magnifications, and a durable carrying case. These filters simply screw onto the front of any 55mm lens and will maintain resolution and picture clarity while magnifying image size. These macro filters are ideal for photographing small items and focusing in on details of coins, flowers, jewelry and insects, as well as industrial photos of miniaturized components, medical and dental laboratory work and other scientific photography. All filters are double-threaded, allowing you to combine them or use them along with other filters. +1 +2 +4 +10 magnifications Close-up filters allow you to achieve maximum magnification to make your small image visible. Ideal for digital & film photography * Special Element Frame - Special matte aluminum satin finish frame reduces reflections. * Black Rimmed Glass - Black rimmed glass reduces light reflection around the filter edge. Carrying case included!