LEE Filters SW150 Hard Edge Graduated 81B Filter

The LEE Filters SW150 Hard Edge Graduated 81B Filter is compatible with a LEE Filters SW150-series filter holder. This filter can be applied to create a warm cast over specific areas of an image, such as a hazy or colorless sky, while allowing for a normal, unaffected exposure in the other regions of the image. This effect can be obtained under daylight when this filter is used on a film camera system with daylight film installed, or on a digital camera system with its daylight white balance setting selected. This filter's partial coloration corresponds to an ability to partially reduce 3500K color temperatures to 3200K, which reflects a mired shift value of up to +27 that can be applied to other starting color temperatures as well. This feature is most pronounced at the edge and tapers to clear by the middle, with a hard-edged line of transition between the colored and clear areas.