长曝光快门速度计算表：ND 滤镜换算与实拍对照
ND 滤镜减了多少光，快门就要慢多少倍——本文用一张换算表把这件事彻底算清，再配上瀑布、海浪、云层、车流光轨的实拍快门区间与 Kevin 自己的实测取舍。
https://www.shephe.com/wp-content/uploads/2026/10/long-exposure-shutter-speed-calculator-guide.webp
1390
927
像素工坊
像素工坊
https://www.shephe.com/wp-content/uploads/2026/10/long-exposure-shutter-speed-calculator-guide.webp
