20.6 m
Hyperfocal distance
10.3 m
Sharp from (focused at hyperfocal)
37 mm f/2.1
Full-frame equivalent
61°
Diagonal angle of view
Depth of field by subject distance#
24 mm at f/1.4 on APS-C (23.5×15.6 mm), circle of confusion 20 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) | 29.6 cm | 30.4 cm | 0.8 cm | 49% / 51% | 6.34% |
| 50.0 cm (1.64 ft) | 48.9 cm | 51.2 cm | 2.3 cm | 49% / 51% | 3.68% |
| 75.0 cm (2.46 ft) | 72.4 cm | 77.7 cm | 5.3 cm | 48% / 52% | 2.41% |
| 1.00 m (3.28 ft) | 95.5 cm | 1.05 m | 9.5 cm | 48% / 52% | 1.79% |
| 1.50 m (4.92 ft) | 1.40 m | 1.62 m | 21.6 cm | 46% / 54% | 1.19% |
| 2.00 m (6.56 ft) | 1.82 m | 2.21 m | 38.8 cm | 45% / 55% | 0.89% |
| 3.00 m (9.84 ft) | 2.62 m | 3.51 m | 88.7 cm | 43% / 57% | 0.59% |
| 4.00 m (13.1 ft) | 3.35 m | 4.96 m | 1.61 m | 40% / 60% | 0.44% |
| 5.00 m (16.4 ft) | 4.03 m | 6.60 m | 2.57 m | 38% / 62% | 0.35% |
| 7.00 m (23.0 ft) | 5.23 m | 10.6 m | 5.36 m | 33% / 67% | 0.25% |
| 10.0 m (32.8 ft) | 6.73 m | 19.4 m | 12.7 m | 26% / 74% | 0.18% |
| 15.0 m (49.2 ft) | 8.68 m | 55.1 m | 46.5 m | 14% / 86% | 0.12% |
| 20.0 m (65.6 ft) | 10.1 m | 691 m | 681 m | 1% / 99% | 0.09% |
| 30.0 m (98.4 ft) | 12.2 m | ∞ | ∞ | — | 0.06% |
| 50.0 m (164 ft) | 14.6 m | ∞ | ∞ | — | 0.04% |
| 100 m (328 ft) | 17.1 m | ∞ | ∞ | — | 0.02% |
Try other settings#
Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—
24 mm at other apertures (subject at 3 m)#
Other focal lengths at f/1.4#
Same lens settings on other formats#
When to use it#
At f/1.4, a 24 mm lens on APS-C is a natural choice for environmental portraits, street and low light. Focused at 3 m you get 88.7 cm of sharp zone; for maximum front-to-back sharpness focus at 20.6 m and everything from 10.3 m to infinity will be acceptably sharp.
See also the f/1.4 aperture guide.
Frequently asked questions#
What is the depth of field of a 24mm lens at f/1.4?
On APS-C, focused at 3 m, it is 88.7 cm; at 1 m it is 9.5 cm.
What is the hyperfocal distance for 24mm f/1.4?
20.6 m (67.6 ft) on APS-C. Everything from 10.3 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources