échelle des temps d’exposition
/eʃˈɛl de- ˈtɑ̃ dɛkspozisjˈɔ̃/
n
English: exposure-time scale · 曝光时间刻度
Sens：Graduated scale that shows the length of time a film should be exposed to light, which is determined by the shutter speed.
English: exposure-time scale · 曝光时间刻度