(pos:名詞)
<explanation>
yue:#相機 嘅一部分；相機影相嘅時候，快門會打開，畀光線進入相機嘅感光元件，之後就會閂埋；快門就好似相機嘅門噉，一打開就可以畀啲光線入嚟；快門嘅速度可以控制相機嘅入光量，打開得越耐，進入相機嘅光線就越多（量詞：個）
eng:shutter, a component of a camera
<eg>
yue:快門開啓再關閉，即係影咗一幅相。 (faai3 mun4 hoi1 kai2 zoi3 gwaan1 bai3, zik1 hai6 jing2 zo2 jat1 fuk1 soeng2.)
eng:When the shutter opens and closes, the camera has taken one photo.
<eg>
yue:買二手相機要留意佢嘅快門數。 (maai5 ji6 sau2 soeng2 gei1 jiu3 lau4 ji3 keoi5 ge3 faai3 mun4 sou3.)
eng:Beware of the shutter count when you purchase a second-hand camera.