The Tiffen 67mm #1 Soft/FX filter retains overall image clarity while it softens unwanted details. The SOFT/FX series has a pattern of tiny lenslets designed specifically to put fine image elements, like wrinkles and skin blemishes, out of focus while leaving larger details such as the eyes, sharp. The proportion of clear space to the diffused pattern on the glass determines the strength of the filter and enables the overall image quality and sharpness to be retained. The lighter densities are very subtle, producing no flare from highlights or reduction in contrast. The higher densities tend to be more noticeable in their effect while still providing a pleasing portrait.