With the Cokin Filter P128 Gradual Pink P1 you can add a pinkish tint to the upper or lower part of your image. This allows you to create beautiful skies at sunrise and sunset, for example.
Cokin P series
You can use the filter with Cokin's P-series mounting system and also in combination with other filters. The filters are flat and square, so they take up little space and always find a place in your equipment.