The sound is of a camera lens that is being zoomed in and out but also the lens has some sand inside of it creating a more scratched sound. 相機變焦 聲道:2 類型:wav camera-lens、large-lens、camera、sand、lens、zoom、zoom-out、zoom-in、OWI 相機鏡頭、大鏡頭、相機、砂、鏡片、放大、縮小、放大、OWI 資料來源:freesound ( https://freesound.org )