Neutral Density (ND) filters reduce light of all wavelengths with no effect on the color rendition. The soft edge is generally used with medium to wide angle lenses and when a smooth transition from ND to clear is required. Formatt, a company with three generations of professional filter-making experience, produces this 4 x 4" glass filter for your camera's lenses.
Features:
- Manufactured from Schott White Water Clear Optical Glass
- Consistent color and density to Kodak Wratten standards
- Precision grinding and polishing for optical flatness allowing use on even ultra-long focal length lenses
- Filter edges protected by a frame
