14.0 m
Hyperfocal distance
7.01 m
Sharp from (focused at hyperfocal)
43 mm f/4.3
Full-frame equivalent
53°
Diagonal angle of view
Depth of field by subject distance#
28 mm at f/2.8 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) | 29.4 cm | 30.6 cm | 1.2 cm | 49% / 51% | 4.38% |
| 50.0 cm (1.64 ft) | 48.4 cm | 51.7 cm | 3.4 cm | 48% / 52% | 2.52% |
| 75.0 cm (2.46 ft) | 71.3 cm | 79.1 cm | 7.8 cm | 47% / 53% | 1.65% |
| 1.00 m (3.28 ft) | 93.5 cm | 1.07 m | 14.0 cm | 47% / 53% | 1.23% |
| 1.50 m (4.92 ft) | 1.36 m | 1.68 m | 31.9 cm | 45% / 55% | 0.81% |
| 2.00 m (6.56 ft) | 1.75 m | 2.33 m | 57.5 cm | 43% / 57% | 0.60% |
| 3.00 m (9.84 ft) | 2.47 m | 3.81 m | 1.33 m | 39% / 61% | 0.40% |
| 4.00 m (13.1 ft) | 3.12 m | 5.58 m | 2.47 m | 36% / 64% | 0.30% |
| 5.00 m (16.4 ft) | 3.69 m | 7.75 m | 4.06 m | 32% / 68% | 0.24% |
| 7.00 m (23.0 ft) | 4.67 m | 13.9 m | 9.27 m | 25% / 75% | 0.17% |
| 10.0 m (32.8 ft) | 5.84 m | 34.8 m | 28.9 m | 14% / 86% | 0.12% |
| 15.0 m (49.2 ft) | 7.25 m | ∞ | ∞ | — | 0.08% |
| 20.0 m (65.6 ft) | 8.24 m | ∞ | ∞ | — | 0.06% |
| 30.0 m (98.4 ft) | 9.55 m | ∞ | ∞ | — | 0.04% |
| 50.0 m (164 ft) | 10.9 m | ∞ | ∞ | — | 0.02% |
| 100 m (328 ft) | 12.3 m | ∞ | ∞ | — | 0.01% |
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/2.8#
Same lens settings on other formats#
When to use it#
At f/2.8, a 28 mm lens on APS-C is a natural choice for environmental portraits, street and low light. Focused at 3 m you get 1.33 m of sharp zone; for maximum front-to-back sharpness focus at 14.0 m and everything from 7.01 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 28mm lens at f/2.8?
On APS-C, focused at 3 m, it is 1.33 m; at 1 m it is 14.0 cm.
What is the hyperfocal distance for 28mm f/2.8?
14.0 m (46.0 ft) on APS-C. Everything from 7.01 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources