Depth of field for the Pentax-F 28-80mm f/3.5-4.5 on the Pentax KF (1.53× crop, circle of confusion 0.020 mm). At 28 mm and f/8 the hyperfocal distance is 5.0 m — focus there and everything from 2.5 m to infinity is sharp.
Focal length
28 mm
43 mm FF equiv.
Hyperfocal @ f/8
5.0 m
17 ft
NPF wide open
39.2 s
f/28, 3.89 µm pixels
Horizontal FOV
45.5°
Depth of field chart at 28 mm
| Focus distance |
|---|
| 1 m |
| 2 m |
| 3 m |
| 5 m |
| 10 m |
| 20 m |
Each cell shows the near and far limits of acceptable sharpness.
Open the DoF calculator with this setup