Macro filter 58mm B + W Close-up +10 - is a macro diopter filter that allows you to reduce the focusing distance to a minimum on any lens. The filter simulates true macro performance (1: 2 or 1: 1.5). We recommend using a mid-range aperture, such as f / 8 or f / 11, in order to maintain sharpness throughout the frame. This filter also has no front streams and is not intended to be used in conjunction with other filters. B + W filters are made of high quality Schott glass for enhanced optical clarity and color accuracy. This filter features a single anti-reflective coating that helps improve light transmission by up to 98% while preventing internal reflections and ghosting. In addition, it is equipped with a brass filter ring to increase its service life and prevent it from seizing.