7.13 m
Hyperfocal distance
3.56 m
Sharp from (focused at hyperfocal)
25 mm f/2.8
Full-frame equivalent
83°
Diagonal angle of view
Depth of field by subject distance#
16 mm at f/1.8 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) | 28.8 cm | 31.2 cm | 2.4 cm | 48% / 52% | 2.13% |
| 50.0 cm (1.64 ft) | 46.8 cm | 53.7 cm | 6.8 cm | 47% / 53% | 1.25% |
| 75.0 cm (2.46 ft) | 68.0 cm | 83.6 cm | 15.6 cm | 45% / 55% | 0.82% |
| 1.00 m (3.28 ft) | 87.8 cm | 1.16 m | 28.2 cm | 43% / 57% | 0.62% |
| 1.50 m (4.92 ft) | 1.24 m | 1.90 m | 65.5 cm | 40% / 60% | 0.41% |
| 2.00 m (6.56 ft) | 1.56 m | 2.77 m | 1.21 m | 36% / 64% | 0.31% |
| 3.00 m (9.84 ft) | 2.11 m | 5.17 m | 3.06 m | 29% / 71% | 0.20% |
| 4.00 m (13.1 ft) | 2.56 m | 9.10 m | 6.53 m | 22% / 78% | 0.15% |
| 5.00 m (16.4 ft) | 2.94 m | 16.7 m | 13.8 m | 15% / 85% | 0.12% |
| 7.00 m (23.0 ft) | 3.53 m | 392 m | 388 m | 1% / 99% | 0.09% |
| 10.0 m (32.8 ft) | 4.16 m | ∞ | ∞ | — | 0.06% |
| 15.0 m (49.2 ft) | 4.83 m | ∞ | ∞ | — | 0.04% |
| 20.0 m (65.6 ft) | 5.25 m | ∞ | ∞ | — | 0.03% |
| 30.0 m (98.4 ft) | 5.75 m | ∞ | ∞ | — | 0.02% |
| 50.0 m (164 ft) | 6.23 m | ∞ | ∞ | — | 0.01% |
| 100 m (328 ft) | 6.64 m | ∞ | ∞ | — | 0.01% |
Try other settings#
Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—
16 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 16 mm lens on APS-C is a natural choice for environmental portraits, street and low light. Focused at 3 m you get 3.06 m of sharp zone; for maximum front-to-back sharpness focus at 7.13 m and everything from 3.56 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 16mm lens at f/1.8?
On APS-C, focused at 3 m, it is 3.06 m; at 1 m it is 28.2 cm.
What is the hyperfocal distance for 16mm f/1.8?
7.13 m (23.4 ft) on APS-C. Everything from 3.56 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources