光影攝計算機是一個輔助攝影的小功具, 令你在估算使用 ISO, 光圈，快門，及 ND時更輕鬆。
This is a tool to ease your choices between ISO, focal length, shutter speed, and ND filter.
光影攝計算機是一個輔助攝影的小功具, 令你在估算使用 ISO, 光圈，快門，及 ND時更輕鬆。
This is a tool to ease your choices between ISO, focal length, shutter speed, and ND filter.