Front-to-back sharpness for a 28 mm lens on Full frame (35 mm): focus at the hyperfocal distance and everything from half that distance to infinity is acceptably sharp.
The chart lists every aperture in meters and feet; the calculator above it is preset to these values so you can try other settings.
Hyperfocal distance chart: 28 mm on Full frame (35 mm)
| Aperture | Hyperfocal (m) | Hyperfocal (ft) | Sharp from (m) | Sharp from (ft) |
|---|---|---|---|---|
| f/1.4 | 18.69 m | 61.3 ft | 9.35 m | 30.7 ft |
| f/1.8 | 14.55 m | 47.7 ft | 7.27 m | 23.9 ft |
| f/2 | 13.09 m | 43.0 ft | 6.55 m | 21.5 ft |
| f/2.8 | 9.36 m | 30.7 ft | 4.68 m | 15.4 ft |
| f/4 | 6.56 m | 21.5 ft | 3.28 m | 10.8 ft |
| f/5.6 | 4.69 m | 15.4 ft | 2.35 m | 7.7 ft |
| f/8 | 3.29 m | 10.8 ft | 1.65 m | 5.4 ft |
| f/11 | 2.40 m | 7.9 ft | 1.20 m | 3.9 ft |
| f/16 | 1.66 m | 5.5 ft | 0.83 m | 2.7 ft |
| f/22 | 1.22 m | 4.0 ft | 0.61 m | 2.0 ft |
Circle of confusion 0.03 mm. A 28 mm lens on this sensor frames like 28 mm on full frame.
Other focal lengths
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