B+W 46mm BASIC Soft Pro Filters are used to scatter light and overlay sharp core images with hazy, diffuse halos. They open up deep shadows, forming a shimmering aura in the darker surroundings. Soft Pro Filters are used in both portrait photography as well as landscape shots, as they reduce high contrasts and the light fringes in the background are softened. Your photographs will take on a gentle, romantic character.