Hoya 52mm Color Graduated Filter - Emerald

Filters are similar to half-color, except that color density gradually decreases near the center of the filter allowing emphasis of foregrounds or backgrounds.

Mounted in a rotating frame, 7 colors are available: Pink, Yellow, Emerald, Tobacco, Blue, Mauve, Gray.

Their color gradually fades out so the boundary between the colored and transparent sections will not become apparent even with the lens aperture stopped down.