Tiffen 4x5650 replacement tiffen ultra thin circular polarizer filter
The tiffen replacement 4x5650 ultra thin circular polarizer filter is designed for use with the tiffen multi rota tray which accepts a both geared 138mm and a 4x565 circular polariser filter simultaneously the combined filters can be used as a variable nd filter or to produce warmcool effects this filter is a replacement for the 4x5650 polariser filter included in some of the mrt kits