The DZOFilm Koop Rear UV Filter is meant for individual use in conjunction with a separately obtainable Koop magnetic base. This is a versatile clear filter created for the absorption of ultraviolet light, serving to safeguard your camera's sensor and diminish the bluish tint often found in daylight. The filter is equipped with a nano multicoating that offers protection against dust, scratches, and moisture, all while preventing any loss of light.