ピントグラス

noun

ground glass

Refers to glass with a roughened surface used for diffusing light or as a focusing aid in cameras. Often used in optical and photographic contexts.

from Dutch brandpunt glas

See also: すりガラス

• ピントグラスは、光ひかりを拡かく散さんさせるために使つかわれる。

  Ground glass is used to diffuse light.

noun

focusing screen

Specifically the ground-glass screen in a camera viewfinder used for manual focusing. Common in photography terminology.

• 古ふるいカメラのピントグラスでピントを合あわせる。

  Focus using the focusing screen of an old camera.