無料 · 計算と変換
被写界深度.
焦点距離と絞りから過焦点距離、近点、遠点を計算します。
H = f² / (N × c) + f. Preset circles of confusion are conventional. Distances follow the optical axis. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
- Hyperfocal distance
- 29.811905 m
- Near distance
- 4.286988 m
- Far distance
- 5.997505 m
- Depth of field
- 1.710517 m
Hyperfocal distance H = f² / (N × c) + f, with f and c in millimetres. Near and far distances use that H. Circle-of-confusion presets are conventional values. Distances are along the optical axis.
使い方: 被写界深度
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英語の技術説明
H = f² / (N × c) + f. Preset circles of confusion are conventional. Distances follow the optical axis. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
Calculate hyperfocal, near and far distances from focal length, aperture, distance and circle of confusion. H = f² / (N × c) + f. Preset circles of confusion are conventional. Distances follow the optical axis. Local arithmetic only. This is a quantity or geometry estimate, not a code check and not a substitute for a licensed professional.
A 50 mm lens at f/2.8 focused at 5 m on a full-frame circle of confusion.