Key numbers
- Mount / system: Canon EF (Full Frame DSLR)
- Sensor: Full Frame, 36 × 24mm
- Focal length: 24–70mm
- Aperture: f/2.8 to f/22
- DoF at 3 m, 35mm, f/2.8: 2.51–3.73 m (≈ 122 cm deep)
- Hyperfocal distance (35mm, f/8): 5.34 m
Depth of field table
Distances are measured from the sensor plane. Each cell shows the near and far limit of acceptable sharpness in metres (∞ = to infinity). Circle of confusion = sensor diagonal / 1500.
24 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/2.8 | 7.16 m | 0.88–1.16 | 1.57–2.76 | 2.12–5.14 | 2.95–16.4 | 4.18–∞ |
| f/4 | 5.02 m | 0.84–1.24 | 1.43–3.30 | 1.88–7.38 | 2.51–622 | 3.35–∞ |
| f/5.6 | 3.59 m | 0.79–1.37 | 1.29–4.45 | 1.64–17.5 | 2.10–∞ | 2.65–∞ |
| f/8 | 2.52 m | 0.72–1.63 | 1.12–9.26 | 1.38–∞ | 1.68–∞ | 2.02–∞ |
| f/11 | 1.84 m | 0.65–2.13 | 0.96–∞ | 1.15–∞ | 1.35–∞ | 1.56–∞ |
| f/16 | 1.27 m | 0.57–4.30 | 0.78–∞ | 0.90–∞ | 1.02–∞ | 1.13–∞ |
| f/22 | 0.93 m | 0.49–∞ | 0.64–∞ | 0.72–∞ | 0.79–∞ | 0.85–∞ |
35 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/2.8 | 15.2 m | 0.94–1.07 | 1.77–2.30 | 2.51–3.73 | 3.77–7.42 | 6.04–29.0 |
| f/4 | 10.7 m | 0.92–1.10 | 1.69–2.45 | 2.35–4.16 | 3.41–9.36 | 5.17–155 |
| f/5.6 | 7.62 m | 0.89–1.15 | 1.59–2.70 | 2.16–4.91 | 3.03–14.4 | 4.33–∞ |
| f/8 | 5.34 m | 0.85–1.22 | 1.46–3.16 | 1.93–6.74 | 2.59–70.6 | 3.49–∞ |
| f/11 | 3.90 m | 0.80–1.33 | 1.33–4.04 | 1.70–12.6 | 2.20–∞ | 2.81–∞ |
| f/16 | 2.69 m | 0.74–1.56 | 1.16–7.43 | 1.43–∞ | 1.76–∞ | 2.13–∞ |
| f/22 | 1.97 m | 0.67–1.96 | 1.00–∞ | 1.20–∞ | 1.42–∞ | 1.65–∞ |
70 mm
| Aperture | Hyperfocal | 1 m | 2 m | 3 m | 5 m | 10 m |
|---|---|---|---|---|---|---|
| f/2.8 | 60.7 m | 0.98–1.02 | 1.94–2.07 | 2.86–3.15 | 4.62–5.44 | 8.59–12.0 |
| f/4 | 42.5 m | 0.98–1.02 | 1.91–2.10 | 2.81–3.22 | 4.48–5.66 | 8.11–13.0 |
| f/5.6 | 30.4 m | 0.97–1.03 | 1.88–2.14 | 2.74–3.32 | 4.30–5.97 | 7.54–14.8 |
| f/8 | 21.3 m | 0.96–1.05 | 1.83–2.20 | 2.64–3.48 | 4.06–6.51 | 6.82–18.7 |
| f/11 | 15.5 m | 0.94–1.06 | 1.78–2.28 | 2.52–3.70 | 3.79–7.33 | 6.10–27.8 |
| f/16 | 10.7 m | 0.92–1.10 | 1.69–2.44 | 2.35–4.13 | 3.42–9.28 | 5.18–141 |
| f/22 | 7.79 m | 0.89–1.14 | 1.60–2.66 | 2.18–4.81 | 3.06–13.6 | 4.40–∞ |
FAQ
What is the depth of field of the Canon EF 24-70mm F2.8L II USM at f/2.8 and 3 m?
At 35mm, f/2.8 and focus at 3 m, acceptable sharpness runs from 2.51 to 3.73 m — about 122 cm in total.
What is the hyperfocal distance of the Canon EF 24-70mm F2.8L II USM?
At 35mm and f/8 on a Full Frame sensor the hyperfocal distance is about 5.34 m. Focus there and everything from 2.67 m to infinity is sharp.
How do I get more background blur with the Canon EF 24-70mm F2.8L II USM?
Open the aperture to f/2.8, move closer to your subject and increase the distance between subject and background, and zoom in to the long end. You can check the result in the calculator above.
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