ND16 Neutral Density Filter Full Gray Color For Cokin P Series 1.Size: 3.74" x 3.31" 2.Material: Metal 3.Color: Black ND16 Neutral Density Filter Full Gray Color For Cokin P Series Introductions:With the influence from UV light, the outdoor photos look hazy. The UV filters are suitable for both black and color films under bright sunshine, which could be used to filter UV light and also as lens ...