OPF (Optical Preset Filter) is a new type of optical filter for camera lenses that can add the glare of light outside the viewfinder captured by the camera, and the colors of the seasons that change depending on the angle and intensity of the light, to your photos. The "480" in OPF 480-S represents the wavelength of light, 480 nanometers, allowing you to take photos with vivid and clear blues. "S" (Soft light) represents the amount of light diffusion by special glass. Combining these two elements makes new expressions possible that have never been achieved before.