Depth of field by subject distance#
24 mm at f/2.8 on Micro Four Thirds (17.3×13 mm), circle of confusion 15 µm. “Background blur” is the size of an out-of-focus light at infinity as a percentage of frame width.
| Focus distance | Near limit | Far limit | Total DoF | Front / behind | Background blur |
|---|---|---|---|---|---|
| 30.0 cm (0.98 ft) | 29.4 cm | 30.6 cm | 1.2 cm | 49% / 51% | 4.31% |
| 50.0 cm (1.64 ft) | 48.3 cm | 51.8 cm | 3.5 cm | 48% / 52% | 2.50% |
| 75.0 cm (2.46 ft) | 71.2 cm | 79.2 cm | 8.0 cm | 47% / 53% | 1.64% |
| 1.00 m (3.28 ft) | 93.4 cm | 1.08 m | 14.3 cm | 46% / 54% | 1.22% |
| 1.50 m (4.92 ft) | 1.35 m | 1.68 m | 32.7 cm | 45% / 55% | 0.81% |
| 2.00 m (6.56 ft) | 1.75 m | 2.34 m | 58.9 cm | 43% / 57% | 0.60% |
| 3.00 m (9.84 ft) | 2.47 m | 3.83 m | 1.37 m | 39% / 61% | 0.40% |
| 4.00 m (13.1 ft) | 3.10 m | 5.63 m | 2.53 m | 36% / 64% | 0.30% |
| 5.00 m (16.4 ft) | 3.67 m | 7.85 m | 4.18 m | 32% / 68% | 0.24% |
| 7.00 m (23.0 ft) | 4.64 m | 14.2 m | 9.61 m | 25% / 75% | 0.17% |
| 10.0 m (32.8 ft) | 5.79 m | 36.7 m | 30.9 m | 14% / 86% | 0.12% |
| 15.0 m (49.2 ft) | 7.17 m | ∞ | ∞ | — | 0.08% |
| 20.0 m (65.6 ft) | 8.14 m | ∞ | ∞ | — | 0.06% |
| 30.0 m (98.4 ft) | 9.42 m | ∞ | ∞ | — | 0.04% |
| 50.0 m (164 ft) | 10.8 m | ∞ | ∞ | — | 0.02% |
| 100 m (328 ft) | 12.1 m | ∞ | ∞ | — | 0.01% |
Try other settings#
24 mm at other apertures (subject at 3 m)#
Other focal lengths at f/2.8#
Same lens settings on other formats#
When to use it#
At f/2.8, a 24 mm lens on Micro Four Thirds is a natural choice for environmental portraits, street and low light. Focused at 3 m you get 1.37 m of sharp zone; for maximum front-to-back sharpness focus at 13.7 m and everything from 6.87 m to infinity will be acceptably sharp.
See also the f/2.8 aperture guide.
Frequently asked questions#
What is the depth of field of a 24mm lens at f/2.8?
On Micro Four Thirds, focused at 3 m, it is 1.37 m; at 1 m it is 14.3 cm.
What is the hyperfocal distance for 24mm f/2.8?
13.7 m (45.1 ft) on Micro Four Thirds. Everything from 6.87 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources