Originally posted by fredralphfred I'd assume the mirror is somehow mechanically coupled to the shutter (so it can't be actuated separately).
Maybe - but testing 2 sec self timer and Live View gives different results.
2 second self-timer; mirror goes up, 2 seconds elapses; shutter fires. (Set shutter to 2 seconds to see this.)
LV - Live view mirror up, sensor shutter curtain open. Fire shutter; mirror drops and then opens immediately and shutter fires. At the end I think the mirror drops and goes back up as well but I can't recall. The point is these both differ and seems to show there is no mechanical requirement for shutter to drop and bounce back up tied to the shutter activity.
Unless maybe it has to drop at the end of the shutter duration? In that case the LV ends, "ending" shutter open condition, the mirror drops and then goes back up at the start of the shutter actuation. Then drops again at the end. Maybe I need to take a video of both...