根據Dpreview的說法: As there is no mirror and the camera works in live view mode full time, the G1 features a newly-designed focal plane shutter that stays open when powered down (conventional shutters are closed when powered down). 感光元件前面還是有焦平面快門簾的,但是平常是開著的,關機也是開著的 拆鏡頭的時候也是開著的(手賤的人請戴白手套換鏡頭) 應該是說只有按下快門的時候會咖喳一下吧=.=|||| http://www.dpreview.com/previews/panasonicG1/page3.asp