The LEE SW150 Graduated ND Filter Sets are available in optically correct resin. Due to the size of the front element of ultra-wideangle lenses, the filters for the SW150 system are larger than those in the standard 100mm range. These graduated filters are 150 x 170mm.
These graduated resin filters that enable the photographer to adjust exposure over part of the photograph without effecting colour balance.
Control exposure by 1, 2 and 3 stops. For example, when photographing a landscape in which the sky is much brighter than the foreground, placing the Neutral Density part of the filter onto the sky in the frame will reduce the sky exposure without effecting the foreground. This enables cloud detail to be kept correctly exposed and avoids the “white out” effect.
Available in a range of gradations between the coated and clear areas of the filter. This enables precise exposure control in a range of situations.