“感光度”的英语？

“感光度”的拼音为：gǎn guāng dù...

你用的胶卷感光度是多少?What's the speed of the film you're using?从理论上来讲, 数码相机的感光度越高,拍摄效果越好.Theoretically speaking, the higher sensitivity of digital camera to photograph the better.和我们用普通胶卷时的感光度差不多.And we use sensitivity ...