The UV fi lter UV 0¡0 blocks ultraviolet radiation which can cause blur or – in color shots – blueness. It is ideal for photos in the mountains, by the sea or in areas with very clear air. Pictures become more brilliant, irritating blue haze is avoided and color reproduction remains neutral. This UV filter is also suitable for use as front lens protection. The recommended product for digital cameras is the UV/IR blocking filter 486, a steep-flanked interference filter which additionally blocks infrared and prevents blur and color cast with IR-sensitive CCDs.