Depth of field for the Pentax smc Pentax-DA 16-45mm f/4 ED AL on the Pentax K-3 III (1.55× crop, circle of confusion 0.019 mm). At 16 mm and f/8 the hyperfocal distance is 1.7 m — focus there and everything from 0.8 m to infinity is sharp.
Focal length
16 mm
25 mm FF equiv.
Hyperfocal @ f/8
1.7 m
5 ft
NPF wide open
15.8 s
f/4, 3.75 µm pixels
Horizontal FOV
72.1°
Depth of field chart at 16 mm
| Focus distance | f/4 | f/5.6 | f/8 | f/11 | f/16 |
|---|---|---|---|---|---|
| 1 m | 0.77–1.4 m | 0.71–1.7 m | 0.63–2.5 m | 0.55–5.6 m | 0.46–∞ m |
| 2 m | 1.25–5.0 m | 1.09–12.7 m | 0.91–∞ m | 0.75–∞ m | 0.59–∞ m |
| 3 m | 1.58–31.5 m | 1.32–∞ m | 1.07–∞ m | 0.86–∞ m | 0.65–∞ m |
| 5 m | 1.99–∞ m | 1.60–∞ m | 1.24–∞ m | 0.97–∞ m | 0.71–∞ m |
| 10 m | 2.48–∞ m | 1.91–∞ m | 1.42–∞ m | 1.07–∞ m | 0.76–∞ m |
| 20 m | 2.83–∞ m | 2.11–∞ m | 1.52–∞ m | 1.13–∞ m | 0.79–∞ m |
Each cell shows the near and far limits of acceptable sharpness.
Open the DoF calculator with this setup