Film set glossary · Camera
f-stop (f-number)
Focal length divided by the diameter of the aperture. Higher numbers mean a smaller opening, less light and deeper focus; f1.4, 2, 2.8, 4, 5.6, 8 are one stop apart.
- Korean
- f값
- Also
- 조리개 값 · f스톱
In other languages
- 한국어 · KO
- f값
- 렌즈의 초점거리를 조리개 구멍의 지름으로 나눈 값. 숫자가 클수록 구멍이 작아 어둡고 심도가 깊어진다. f1.4·2·2.8·4·5.6·8처럼 한 칸이 1스톱이다.
- 日本語 · JA
- F値（絞り値）
- レンズの焦点距離を絞りの口径で割った値。数字が大きいほど開口が小さく暗くなり、被写界深度が深くなる。F1.4・2・2.8・4・5.6・8と1段ずつ並ぶ。
Related
- T-stopAn aperture value based on light actually transmitted through the lens, so lenses set to the same T-stop give the same exposure. Standard on cine lenses.
- Depth of fieldThe range in front of and behind the focus point that looks sharp. It gets shallower with a wider aperture, longer focal length, closer subject and, for the same framing, a larger sensor.
- Focal lengthThe lens value in millimetres that sets the angle of view: shorter is wider, longer is tighter. On smaller sensors the same lens frames tighter, so it is compared in full-frame equivalents.
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