【攝影知識】不同品牌 ND鏡 光學對照表
B+W, LEE, COKIN, TIFFEN等大廠ND常有不同的標示，在Wiki有詳細的對照表，給大家了解對於光量與ND數值，光圈值對應關係的一個概念。
| ND1數值表示 | ND. 0.x 表示 | ND值表示 | 光圈孔徑與 全開光圈之比例 |
光學濃度 | f 檔值 縮小比例 |
% 穿透率 |
|---|---|---|---|---|---|---|
| 1 | 0.0 | 0 | 100% | |||
| ND 101 | ND 0.3 | ND2 | 1/2 | 0.3 | 1 | 50% |
| ND 102 | ND 0.6 | ND4 | 1/4 | 0.6 | 2 | 25% |
| ND 103 | ND 0.9 | ND8 | 1/8 | 0.9 | 3 | 12.5% |
| ND 104 | ND 1.2 | ND16 | 1/16 | 1.2 | 4 | 6.25% |
| ND 105 | ND 1.5 | ND32 | 1/32 | 1.5 | 5 | 3.125% |
| ND 106 | ND 1.8 | ND64 | 1/64 | 1.8 | 6 | 1.563% |
| ND 2.0 | ND100 | 1/100 | 2.0 | 6 2/3 | 1% | |
| ND 107 | ND 2.1 | ND128 | 1/128 | 2.1 | 7 | 0.781% |
| ND 108 | ND 2.4 | ND256 | 1/256 | 2.4 | 8 | 0.391% |
| ND400 | 1/400 | 2.6 | 8 2/3 | 0.25% | ||
| ND 109 | ND 2.7 | ND512 | 1/512 | 2.7 | 9 | 0.195% |
| ND 110 | ND 3.0 | ND1024 (also called ND1000) | 1/1024 | 3.0 | 10 | 0.098% |
| ND 111 | ND 3.3 | ND2048 | 1/2048 | 3.3 | 11 | 0.049% |
| ND 112 | ND 3.6 | ND4096 | 1/4096 | 3.6 | 12 | 0.024% |
| ND 3.8 | ND6310 | 1/6310 | 3.8 | 12 2/3 | 0.016% | |
| ND 113 | ND 3.9 | ND8192 | 1/8192 | 3.9 | 13 | 0.012% |
| ND 4.0 | ND10000 | 1/10000 | 4.0 | 13 1/3 | 0.01% | |
| ND 5.0 | ND100000 | 1/100000 | 5.0 | 16 2/3 | 0.001% |