Cokin P035 Warm (81D) is a yellow corrective or coloring light filter. It is used for painting the image in warm colors in digital photography, as well as balancing the color temperature of the frame (adjusting the white balance) when shooting on color film in daylight conditions. 81D reduces the color temperature from 3700K to 3200K (that is, it turns the color of halogen lamps into incandescent lamps).
These filters are used to give a warm tone to the image, to suppress the blue cast when shooting on cloudy days, and to balance the color when shooting at dawn and sunset, when the sun has already stopped illuminating the subject. Used to give a "tan" to the skin in portrait photography. The effect of 81D is stronger than that of 81C.
This filter measurse 85 x 85mm and fits the Cokin P series holder.
Filter factor 1.2 (+1/4 stop)