HOYA Golden Soft filters are compatible with SQ100 filter-holder system and major filter-holder system using 100x100mm filters with 2mm thickness, such as COKIN NX-Series. Their use will strengthen warm tones to create unique atmsophere, while softening objects and warming skins tones. Available in 2 intensities 1/4 and 1/8, 1/4 version being stronger when in some case light sources are far in the frame for example. The filter will add a "cinema" look to your pictures with a warm ambiant rendering.