Tiffen Glimmerglass filter - Sizes 39mm-4x5.65"

If you are looking for a diffusion filter which keeps an apparent sharpness to your images while at the same time producing soft clean halation around light sources then  the Tiffen Glimmerglass might be what you are looking for. The sharpness and fine detail is kept on close ups as the effect of the filter lowers contrast while softly rolling into the shadow area. There is a moderately muting of bright colours due to the low contrast effect whereby the lower end of Glimmerglass grades produce a subtle non-invasive look.
The Tiffen Glimmerglass filter never becomes overly powerful in its spread of halation even at heavier densities. An added benefit of the Glimmerglass is the fact it sparkles when viewed, which can add reassurance to your talent for beauty shots.