fill light

US /ˈfɪl ˌlaɪt/
UK /ˈfɪl ˌlaɪt/
"fill light" picture
1.

フィルライト, 補助光

a light used in photography or cinematography to soften shadows and reduce contrast, typically placed opposite the main light source

:
The photographer used a fill light to illuminate the subject's face evenly.
写真家は被写体の顔を均一に照らすためにフィルライトを使用した。
Without a fill light, the shadows on one side of the model's face were too harsh.
フィルライトがないと、モデルの顔の片側の影が強すぎた。