Headroom
01
ダイナミックレンジ, パワーリザーブ
the capacity of a system to reproduce loud sounds without distortion
02
ヘッドルーム, 垂直余裕
vertical space available to allow easy passage under something
03
ヘッドルーム, 頭上スペース
the space between the top of the subject's head and the top edge of the image frame, and is an important compositional element that can affect the balance and aesthetic appeal of the image
