The product is a 58mm Glass Multi Coated UV Filter designed for Canon Rebel T5i, T4i, T3i, T3, T2i, and SL1 cameras. It features a maximum aperture of f/0.95 and a circular shape with a T2 mount. The filter provides UV filter effects and can be used for both auto and manual focus. It is suitable for both camcorders and cameras, with a circular size of 55mm.