Feature●Filter #1 ND8, 0.9, 3 Stop exposure correction.●Filter #2 ND64, 1.8, 6 Stop exposure correction.●Filter #3 ND1000, 3.0, 10 Stop exposure correction.●Filter #4 CPL, 1 Stop exposure correction. Rotating Front Frame.●Superfine Thin Matte Black Frame. Ideal for Wide Angle Lenses.●Double threaded metal frame for additional filters or Hood.●Filters Each have Individual Storage CasesDescription ND8 Filter. Slim: 3.6mm deep. Ideal for Wide Angle. 3 Stop exposure correction. No color cast. Black-rimmed glass. Superfine matte black frame. Includes front threads for filters or Hood.