3.29 m
Hyperfocal distance
1.65 m
Sharp from (focused at hyperfocal)
28 mm f/8.0
Full-frame equivalent
75°
Diagonal angle of view
Depth of field by subject distance#
28 mm at f/8 on full frame (36×24 mm), circle of confusion 30 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) | 27.7 cm | 32.7 cm | 5.0 cm | 46% / 54% | 1.00% |
| 50.0 cm (1.64 ft) | 43.7 cm | 58.4 cm | 14.8 cm | 43% / 57% | 0.58% |
| 75.0 cm (2.46 ft) | 61.4 cm | 96.3 cm | 34.9 cm | 39% / 61% | 0.38% |
| 1.00 m (3.28 ft) | 77.1 cm | 1.42 m | 65.3 cm | 35% / 65% | 0.28% |
| 1.50 m (4.92 ft) | 1.03 m | 2.73 m | 1.70 m | 27% / 73% | 0.18% |
| 2.00 m (6.56 ft) | 1.25 m | 5.05 m | 3.80 m | 20% / 80% | 0.14% |
| 3.00 m (9.84 ft) | 1.57 m | 33.3 m | 31.7 m | 5% / 95% | 0.09% |
| 4.00 m (13.1 ft) | 1.81 m | ∞ | ∞ | — | 0.07% |
| 5.00 m (16.4 ft) | 1.98 m | ∞ | ∞ | — | 0.05% |
| 7.00 m (23.0 ft) | 2.23 m | ∞ | ∞ | — | 0.04% |
| 10.0 m (32.8 ft) | 2.47 m | ∞ | ∞ | — | 0.03% |
| 15.0 m (49.2 ft) | 2.69 m | ∞ | ∞ | — | 0.02% |
| 20.0 m (65.6 ft) | 2.81 m | ∞ | ∞ | — | 0.01% |
| 30.0 m (98.4 ft) | 2.95 m | ∞ | ∞ | — | 0.01% |
| 50.0 m (164 ft) | 3.07 m | ∞ | ∞ | — | 0.01% |
| 100 m (328 ft) | 3.16 m | ∞ | ∞ | — | 0.00% |
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/8#
Same lens settings on other formats#
When to use it#
At f/8, a 28 mm lens on full frame is a natural choice for landscapes and architecture where front-to-back sharpness matters. Focused at 3 m you get 31.7 m of sharp zone; for maximum front-to-back sharpness focus at 3.29 m and everything from 1.65 m to infinity will be acceptably sharp.
See also the f/8 aperture guide.
Frequently asked questions#
What is the depth of field of a 28mm lens at f/8?
On full frame, focused at 3 m, it is 31.7 m; at 1 m it is 65.3 cm.
What is the hyperfocal distance for 28mm f/8?
3.29 m (10.8 ft) on full frame. Everything from 1.65 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources