Tianya Square Graduated Blue Filter

This graduated blue glass filter is a great way of experimenting with your photography.

Coloured filters can be used with black and white or coloured film and the graduated colour means that with varied positioning， completely different photographs of the same subject can be achieved shot after shot.

Blue filters are used to produce cooling effects and prevent a reddish cast in early morning and late afternoons. They slightly darkens the orange and red tones and creates lighter blues and greens.