Editorial Review:

Product Description:
One of the reasons of the Cokin success story is that Cokin is permanently in close contact with both professional and amateur photographers and videographers, so as to listen to their ideas and precise needs. The products launched by Cokin are therefore always perfectly adapted to real needs.

Amazon.com Product Description:
Cokin filters were invented by professional photographer Jean Coquin. By using square filters like Cokin's, which fit into a holder and are attached to a lens via an adapter ring, the photographer has a number of immediate advantages. There is no need to duplicate filters to fit different size lenses, up to three filters can be used at once to create unique effects, and the photographer has control over the positioning of the effect on the photograph.

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Rating: - Center Spot Bicolor
These filters have a clear spot in the center which has no filter effect. This means that the subject in the center of the picture is reproduced clearly while the surrounding area which is often distracting is changed, usually colored or darkened. The main area of use is for portraits. The transition from subject to background, and also the size of the clear circular area, depend on focal length and aperture. The transition is more gradual when the aperture is opened wider. The circle becomes larger as focal length is increased. The circle becomes larger and less clearly defined if the filter is placed further forward. The distance between your lens and the Center Spot filter can be varied by using the Cokin Modular Hood and a Coupling ring .

The Bicolor filters are not symmetrically colored, and different effects can be obtained with the same filter just by rotating the filter holder.