Depth of field for the Pentax smc Pentax-DA 50-200mm f/4-5.6 DA ED on the Pentax K-3 III (1.55× crop, circle of confusion 0.019 mm). At 50 mm and f/8 the hyperfocal distance is 16.2 m — focus there and everything from 8.1 m to infinity is sharp.
Focal length
50 mm
77 mm FF equiv.
Hyperfocal @ f/8
16.2 m
53 ft
NPF wide open
5.0 s
f/4, 3.75 µm pixels
Horizontal FOV
26.2°
Depth of field chart at 50 mm
| Focus distance | f/4 | f/5.6 | f/8 | f/11 | f/16 |
|---|---|---|---|---|---|
| 1 m | 0.97–1.0 m | 0.96–1.0 m | 0.94–1.1 m | 0.92–1.1 m | 0.89–1.1 m |
| 2 m | 1.89–2.1 m | 1.84–2.2 m | 1.78–2.3 m | 1.71–2.4 m | 1.61–2.6 m |
| 3 m | 2.75–3.3 m | 2.66–3.4 m | 2.54–3.7 m | 2.40–4.0 m | 2.20–4.7 m |
| 5 m | 4.33–5.9 m | 4.11–6.4 m | 3.82–7.2 m | 3.51–8.7 m | 3.10–13.0 m |
| 10 m | 7.64–14.5 m | 6.98–17.6 m | 6.18–26.2 m | 5.41–66.5 m | 4.47–∞ m |
| 20 m | 12.35–52.5 m | 10.71–150.6 m | 8.93–∞ m | 7.40–∞ m | 5.75–∞ m |
Each cell shows the near and far limits of acceptable sharpness.
Open the DoF calculator with this setup