B + W 77mm #091 Glass Filter - Dark Red #29

Product DescriptionThe use of this filter gives a surrealistic effect in landscape and architectural photography by producing a "storm-like" cloud effect, "moonlight" effect, and "wood" effect. It is indispensable for tonal separation in still-life photography and for the reproduction of documents which have become illegible. Filter factor is approx.

Source: Digital Camera and Video Store...