Cokin Diffusers have very little effect on the sharpness of the image. They merely diffuse highlights thus reducing contrast. As such, diffusers can be used to soften a landscape, or soften skin texture in a portrait to hide minor flaws. Cokin Diffusers are available in three grades, #1 (#083), #2 (#084), and #3 (#085) with #3 having the greatest effect.
This filter measures 130 x 170mm and only fits the Cokin X-PRO series holder.