Hey everyone! Not being a native English speaker, I often wonder where the term shutter speed comes from. In German, we say "Belichtungszeit" which would translate to exposure time - which is rather logical and found in the EXIF data. But where does the rather misleading "shutter speed" come from? I could only imagine these are from rotary shutters of movie cameras. But as far as I know, they rotate at the same speed. Any historians here in the group?