Infrared Filter An infrared filter is a specialized optical filter that blocks visible light while allowing infrared wavelengths to pass through to the camera sensor. Infrared filters are commonly used in infrared photography to capture images beyond the visible spectrum, revealing unique textures, patterns, and details that are not visible to the naked eye.
By attaching an infrared filter to the camera lens, photographers can selectively filter out visible light and capture images primarily composed of infrared radiation. Depending on the type of filter used, infrared photography can produce surreal and otherworldly effects, with foliage appearing white or light-colored and skies appearing dark. Infrared filters are available in various strengths and designs, including screw-on filters and filter systems that attach to the front of the lens, allowing photographers to experiment with different infrared photography techniques and creative effects.