29.1 m
Hyperfocal distance
14.5 m
Sharp from (focused at hyperfocal)
56 mm f/3.6
Full-frame equivalent
42°
Diagonal angle of view
Depth of field by subject distance#
28 mm at f/1.8 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) | 29.7 cm | 30.3 cm | 0.6 cm | 50% / 50% | 9.26% |
| 50.0 cm (1.64 ft) | 49.2 cm | 50.8 cm | 1.6 cm | 49% / 51% | 5.33% |
| 75.0 cm (2.46 ft) | 73.2 cm | 76.9 cm | 3.7 cm | 49% / 51% | 3.49% |
| 1.00 m (3.28 ft) | 96.8 cm | 1.03 m | 6.7 cm | 48% / 52% | 2.59% |
| 1.50 m (4.92 ft) | 1.43 m | 1.58 m | 15.2 cm | 47% / 53% | 1.71% |
| 2.00 m (6.56 ft) | 1.87 m | 2.15 m | 27.3 cm | 47% / 53% | 1.28% |
| 3.00 m (9.84 ft) | 2.72 m | 3.34 m | 62.1 cm | 45% / 55% | 0.85% |
| 4.00 m (13.1 ft) | 3.52 m | 4.63 m | 1.12 m | 43% / 57% | 0.63% |
| 5.00 m (16.4 ft) | 4.27 m | 6.03 m | 1.76 m | 41% / 59% | 0.51% |
| 7.00 m (23.0 ft) | 5.64 m | 9.21 m | 3.57 m | 38% / 62% | 0.36% |
| 10.0 m (32.8 ft) | 7.44 m | 15.2 m | 7.79 m | 33% / 67% | 0.25% |
| 15.0 m (49.2 ft) | 9.90 m | 31.0 m | 21.1 m | 24% / 76% | 0.17% |
| 20.0 m (65.6 ft) | 11.8 m | 64.1 m | 52.2 m | 16% / 84% | 0.13% |
| 30.0 m (98.4 ft) | 14.8 m | ∞ | ∞ | — | 0.08% |
| 50.0 m (164 ft) | 18.4 m | ∞ | ∞ | — | 0.05% |
| 100 m (328 ft) | 22.5 m | ∞ | ∞ | — | 0.03% |
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/1.8#
Same lens settings on other formats#
When to use it#
At f/1.8, a 28 mm lens on Micro Four Thirds is a natural choice for environmental portraits, street and low light. Focused at 3 m you get 62.1 cm of sharp zone; for maximum front-to-back sharpness focus at 29.1 m and everything from 14.5 m to infinity will be acceptably sharp.
See also the f/1.8 aperture guide.
Frequently asked questions#
What is the depth of field of a 28mm lens at f/1.8?
On Micro Four Thirds, focused at 3 m, it is 62.1 cm; at 1 m it is 6.7 cm.
What is the hyperfocal distance for 28mm f/1.8?
29.1 m (95.4 ft) on Micro Four Thirds. Everything from 14.5 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources