With the T-PRO filter line, it has been possible to adapt the design to the increasingly compact camera equipment and to create a slim profile. The titanium-colored finish gives the filter line a special touch and is optimally suited for all focal lengths, including wide-angle and telephoto lenses. The special functional coating facilitates the screwing in and out of the filter with its sliding properties. The base material of the filter frame is, as is customary with B+W, made of sturdy brass.