Tamron 67mm Skylight 1A Glass Filter.

Reduces the excessive bluishness that frequently occurs in outdoor color photography, especially in open shade under a clear, blue sky.

Also keeps skin tones free of colored reflections from nearby objects such as the shade of trees.

Absorbs almost half of UV light, a popular general use filter, pink-tinted for added warmth and better colors. Especially helpful when shooting in outdoor open shade and on overcast days.