Depth of field by subject distance#
14 mm at f/4 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) | 27.6 cm | 32.9 cm | 5.3 cm | 46% / 54% | 0.99% |
| 50.0 cm (1.64 ft) | 43.5 cm | 58.7 cm | 15.2 cm | 43% / 57% | 0.58% |
| 75.0 cm (2.46 ft) | 61.2 cm | 96.8 cm | 35.6 cm | 39% / 61% | 0.38% |
| 1.00 m (3.28 ft) | 76.8 cm | 1.43 m | 66.4 cm | 35% / 65% | 0.29% |
| 1.50 m (4.92 ft) | 1.03 m | 2.75 m | 1.72 m | 27% / 73% | 0.19% |
| 2.00 m (6.56 ft) | 1.24 m | 5.10 m | 3.86 m | 20% / 80% | 0.14% |
| 3.00 m (9.84 ft) | 1.57 m | 34.9 m | 33.3 m | 4% / 96% | 0.09% |
| 4.00 m (13.1 ft) | 1.80 m | ∞ | ∞ | — | 0.07% |
| 5.00 m (16.4 ft) | 1.98 m | ∞ | ∞ | — | 0.06% |
| 7.00 m (23.0 ft) | 2.23 m | ∞ | ∞ | — | 0.04% |
| 10.0 m (32.8 ft) | 2.46 m | ∞ | ∞ | — | 0.03% |
| 15.0 m (49.2 ft) | 2.68 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#
14 mm at other apertures (subject at 3 m)#
Other focal lengths at f/4#
| Focal length | Subject at | Total DoF |
|---|---|---|
| 14 mm | 3.00 m | 33.3 m |
| 16 mm | 3.00 m | 8.21 m |
| 20 mm | 3.00 m | 3.35 m |
| 24 mm | 3.00 m | 2.06 m |
| 28 mm | 3.00 m | 1.44 m |
| 35 mm | 3.00 m | 89.0 cm |
| 40 mm | 3.00 m | 67.4 cm |
| 50 mm | 3.00 m | 42.7 cm |
| 85 mm | 3.00 m | 14.5 cm |
| 105 mm | 3.00 m | 9.5 cm |
| 135 mm | 3.00 m | 5.7 cm |
| 200 mm | 10.0 m | 29.4 cm |
| 300 mm | 10.0 m | 12.9 cm |
| 400 mm | 10.0 m | 7.2 cm |
| 600 mm | 10.0 m | 3.1 cm |
Same lens settings on other formats#
When to use it#
At f/4, a 14 mm lens on Micro Four Thirds is a natural choice for general photography. Focused at 3 m you get 33.3 m of sharp zone; for maximum front-to-back sharpness focus at 3.28 m and everything from 1.64 m to infinity will be acceptably sharp.
See also the f/4 aperture guide.
Frequently asked questions#
What is the depth of field of a 14mm lens at f/4?
On Micro Four Thirds, focused at 3 m, it is 33.3 m; at 1 m it is 66.4 cm.
What is the hyperfocal distance for 14mm f/4?
3.28 m (10.8 ft) on Micro Four Thirds. Everything from 1.64 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources