The Cokin Filter P062 Center Spot Grey 1 allows you to emphasize the centre of an image while darkening the surrounding area. This filter comes in two gradations: P062 Grey 1 and P063 Grey 2, with the 063 filter having a greater effect than this 062 filter. With the P062 filter you can give your photos a more dramatic look.
Working with the P062 filter
The filter is directly influenced by the set aperture and the focal length. If you use a larger aperture, the filter will have a softer effect on the photo. The size of the circular area that will be in focus becomes larger when using a longer focal length. Exposure metering should be done without the filter attached to the lens. If your camera has spot metering, you do not need to remove the filter from the lens to determine exposure.