The Lee Seven 5 Starter Kit contains a 0.6 Neutral Density Hard Grad Filter & a Lee Seven 5 Filter Holder. The filter features a hard graduation from dark to light & is designed to reduce exposure by 2 stops without affecting colour balance. ND Grads enable you to balance light intensity in one part of a scene with another. For example, when photographing a landscape in which the sky is much brighter than the foreground, placing the neutral density part of the filter onto the sky in the frame will reduce the sky exposure without affecting the foreground. Adapter ring not included.