Depth of field for the Sigma 30mm f/1.4 DC DN on the Sigma fp L (1.00× crop, circle of confusion 0.030 mm). At 30 mm and f/8 the hyperfocal distance is 3.8 m — focus there and everything from 1.9 m to infinity is sharp.
Focal length
30 mm
30 mm FF equiv.
Hyperfocal @ f/8
3.8 m
12 ft
NPF wide open
5.4 s
f/1.4, 3.76 µm pixels
Horizontal FOV
61.9°
Depth of field chart at 30 mm
| Focus distance | f/1.4 | f/2 | f/2.8 | f/4 | f/5.6 | f/8 |
|---|---|---|---|---|---|---|
| 1 m | 0.96–1.0 m | 0.94–1.1 m | 0.92–1.1 m | 0.89–1.1 m | 0.85–1.2 m | 0.79–1.3 m |
| 2 m | 1.83–2.2 m | 1.77–2.3 m | 1.69–2.5 m | 1.58–2.7 m | 1.46–3.2 m | 1.31–4.2 m |
| 3 m | 2.63–3.5 m | 2.50–3.7 m | 2.35–4.2 m | 2.15–5.0 m | 1.93–6.7 m | 1.67–14.4 m |
| 5 m | 4.06–6.5 m | 3.76–7.5 m | 3.42–9.3 m | 3.01–14.8 m | 2.59–69.2 m | 2.15–∞ m |
| 10 m | 6.82–18.7 m | 6.01–29.8 m | 5.18–144.0 m | 4.29–∞ m | 3.50–∞ m | 2.73–∞ m |
| 20 m | 10.35–293.8 m | 8.58–∞ m | 6.98–∞ m | 5.46–∞ m | 4.23–∞ m | 3.16–∞ m |
Each cell shows the near and far limits of acceptable sharpness.
Open the DoF calculator with this setup