The cokin z pro 045 sepia light special color effect resin filter gives an overall nostalgic turn of the century look to otherwise ordinary color photographs by tinting them with an antique brownish hue in this way your photos will take on the look of having been shot many years ago in black and white the z pro series is recommended for focal lengths of 20mm onwards in the 35mm format this filter is made of cr39 resin which is a reputable lightweight and unbreakable optical materi