Vignetting the Compost was created in 2009-02.

Mechanical vignetting is used in photography. It is caused when something blocks the light. This is done to change the look of a photo. A technique used by more skilled photographers.

A reduction in light at the edge of the lens. The barrel or sides of the lens become visible, resulting in dark corners in the image.

Not in the automobile sense. You can have image vignetting if the angle of flash output is less than the angle of the lens (may happen with wide angle lenses) or if a filter being used encroaches into the viewing area of the lens. Vignetting is sometimes done intentionally with the use of masks in a special holder mounted on the front of the lens.

COKIN P-Series filters can prevent the risk of vignetting through 20 percent more angle of vision. COKIN P-Series filters are also compatible across all 184 P-Series filters.