The Formatt 105mm Double Fog 2 Filter maintains subject sharpness even though it is a diffusion filter. Flare and contrast are minimized making it a great choice when you want a soft image but not too soft.
Double Fog filters are great when you're out in the country and come upon a remote, pastoral scene with some water, trees and, perhaps a lone row boat attached to an old wooden dock. The benefit of the fog effect will be an air of drama and romance to an otherwise staid shot. Portraits shot with a Double Fog will cover some imperfections in someone's complexion as well as add a touch of mystery.