28.0 m
Hyperfocal distance
14.0 m
Sharp from (focused at hyperfocal)
43 mm f/2.1
Full-frame equivalent
53°
Diagonal angle of view
Depth of field by subject distance#
28 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) | 29.7 cm | 30.3 cm | 0.6 cm | 50% / 50% | 8.76% |
| 50.0 cm (1.64 ft) | 49.2 cm | 50.9 cm | 1.7 cm | 49% / 51% | 5.05% |
| 75.0 cm (2.46 ft) | 73.1 cm | 77.0 cm | 3.9 cm | 49% / 51% | 3.30% |
| 1.00 m (3.28 ft) | 96.6 cm | 1.04 m | 7.0 cm | 48% / 52% | 2.45% |
| 1.50 m (4.92 ft) | 1.43 m | 1.58 m | 15.8 cm | 47% / 53% | 1.62% |
| 2.00 m (6.56 ft) | 1.87 m | 2.15 m | 28.3 cm | 46% / 54% | 1.21% |
| 3.00 m (9.84 ft) | 2.71 m | 3.36 m | 64.4 cm | 45% / 55% | 0.80% |
| 4.00 m (13.1 ft) | 3.50 m | 4.66 m | 1.16 m | 43% / 57% | 0.60% |
| 5.00 m (16.4 ft) | 4.25 m | 6.08 m | 1.83 m | 41% / 59% | 0.48% |
| 7.00 m (23.0 ft) | 5.60 m | 9.32 m | 3.72 m | 38% / 62% | 0.34% |
| 10.0 m (32.8 ft) | 7.37 m | 15.5 m | 8.16 m | 32% / 68% | 0.24% |
| 15.0 m (49.2 ft) | 9.77 m | 32.2 m | 22.5 m | 23% / 77% | 0.16% |
| 20.0 m (65.6 ft) | 11.7 m | 69.8 m | 58.1 m | 14% / 86% | 0.12% |
| 30.0 m (98.4 ft) | 14.5 m | ∞ | ∞ | — | 0.08% |
| 50.0 m (164 ft) | 18.0 m | ∞ | ∞ | — | 0.05% |
| 100 m (328 ft) | 21.9 m | ∞ | ∞ | — | 0.02% |
Try other settings#
Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—
28 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 28 mm lens on APS-C is a natural choice for environmental portraits, street and low light. Focused at 3 m you get 64.4 cm of sharp zone; for maximum front-to-back sharpness focus at 28.0 m and everything from 14.0 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 28mm lens at f/1.4?
On APS-C, focused at 3 m, it is 64.4 cm; at 1 m it is 7.0 cm.
What is the hyperfocal distance for 28mm f/1.4?
28.0 m (92.0 ft) on APS-C. Everything from 14.0 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources