Absorptive ND Filter Boxed Set Ø 25mm ND70 OD0.10 T79% ND50 OD0.2 T63% NG11 OD0.30 T50% NG11 OD0.4 T40% ND25 OD0.5 T32% NG5 OD0.6 T25% NG5 OD0.80 T16% NG5 OD1 T10% NG4 OD1.5 T3.20% NG4 OD2 T1% NG3 OD3 T0.10% NG3 OD4 T0.01% UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY.