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The Formatt 4 x 4" 81EF Soft Edge Graduated 0.9 ND Combination Filter combines both a warming 81 EF and a graduated neutral density filter. There is a soft-edged 0.9 density for darkening skies and other bright areas of the image. The 81EF filtration covers the entire filter plane and adds more warmth to your images in order to reduce blue shadows and haze when photographing outdoors and with an electronic flash.
The 0.9 density provides a 3 stop reduction in light from entering the lens. This filter measures 4 x 4" / 101.6 x 101.6mm and is constructed from specially formulated CR-39 resin sandwiched between two layers of high-quality Schott glass.
Combination of both a warming 81EF and a graduated neutral density filter.
Soft-edged 0.9 ND graduated filter for darkening skies and other bright areas of the image.
81EF filter adds warmth (-650K) to your images in order to reduce blue shadows and haze when photographing outdoors.
Formatt filters combine high-quality Schott glass with specially formulated CR-39 resin in order to contain synthetic dyes while still garnering the benefits of optical glass.