富士NeutralDensity(ND)Filters濃度補(bǔ)正濾色片簡稱減光片，應(yīng)用于照相時在沒有辦法或不改變光源強(qiáng)度的情況之下，可以精確的調(diào)整曝光量，使得能夠在想要的光圈與快門速度條件下，拍攝特殊效果的景物。 產(chǎn)品規(guī)格：種類透光率%容許值（A光源）ND-0.179.4577.70~81.20ND-0.263.1060.02~66.00ND-0.350.2047.90~52.50ND-0.439.8538.00~41.70ND-0.531.7029.50~33.90ND-0.625.2023.50~26.90ND-0.720.0018.60~21.40ND-0.815.9014.80~17.00ND-0.912.6011.70~13.50ND-1.010.109.09~11.00ND-1.26.005.40~6.60ND-1.53.002.80~3.50ND-2.00.950.70~1.20A光源/色溫度K=2854；C光源/色溫度K=6740應(yīng)用組合：(供參考，也可根據(jù)透光率數(shù)值自行搭配）透光率配合使用計算方式1%ND-2.0Y=0.95%2%ND-0.2+ND-1.563.10%X3.00%=1.89%3%ND1.5或ND-0.6+ND-0.9 3%25.20%X12.60%=3.17% 4%ND-0.4+ND-1.039.85%X10.10%=4.03%5%ND-0.3+ND-1.0或ND-0.5+ND-0.850.20%X10.10%=5.07%31.70%X15.90%=5.04% 6%ND-1.26.00%8%ND-0.1+ND-1.0或ND-0.5+ND-0.679.45%X10.10%=8.02% 31.70%X25.20%=8.00% 10%ND-1.010.10%