The B+W 105mm Soft Image Glass Filter is markedly softer than B+W Soft Pro Filter and can produce the contours flow. It offers a soft focus with halo effect, which surrounds the light sources and reflections around the image. This in turn gives a noticeable light covering to the subject.The B+W 105mm Soft Image Glass Filter maintains light covering even when lens is stoppedThis glass filter is the best recommended for portraits and backlit situationThis B+W Filter may be too soft for some of the landscapesThere is no filter factor or grades applicable for this glass filterThere is no multi-coating given to the B+W 105mm Soft Image Glass FilterThis B+W Filter is made of Schott Glass constructionThe front lens cap size and front filter thread size of this glass filter is 105 mm