9.74 m
Hyperfocal distance
4.87 m
Sharp from (focused at hyperfocal)
80 mm f/22.0
Full-frame equivalent
30°
Diagonal angle of view
Depth of field by subject distance#
40 mm at f/11 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) | 29.2 cm | 30.8 cm | 1.6 cm | 49% / 51% | 3.23% |
| 50.0 cm (1.64 ft) | 47.7 cm | 52.5 cm | 4.8 cm | 48% / 52% | 1.83% |
| 75.0 cm (2.46 ft) | 69.9 cm | 80.9 cm | 11.0 cm | 46% / 54% | 1.18% |
| 1.00 m (3.28 ft) | 91.0 cm | 1.11 m | 20.0 cm | 45% / 55% | 0.88% |
| 1.50 m (4.92 ft) | 1.30 m | 1.77 m | 46.2 cm | 42% / 58% | 0.58% |
| 2.00 m (6.56 ft) | 1.66 m | 2.51 m | 84.3 cm | 40% / 60% | 0.43% |
| 3.00 m (9.84 ft) | 2.30 m | 4.32 m | 2.02 m | 35% / 65% | 0.28% |
| 4.00 m (13.1 ft) | 2.84 m | 6.76 m | 3.92 m | 30% / 70% | 0.21% |
| 5.00 m (16.4 ft) | 3.31 m | 10.2 m | 6.93 m | 24% / 76% | 0.17% |
| 7.00 m (23.0 ft) | 4.08 m | 24.8 m | 20.7 m | 14% / 86% | 0.12% |
| 10.0 m (32.8 ft) | 4.93 m | ∞ | ∞ | — | 0.08% |
| 15.0 m (49.2 ft) | 5.90 m | ∞ | ∞ | — | 0.06% |
| 20.0 m (65.6 ft) | 6.54 m | ∞ | ∞ | — | 0.04% |
| 30.0 m (98.4 ft) | 7.34 m | ∞ | ∞ | — | 0.03% |
| 50.0 m (164 ft) | 8.13 m | ∞ | ∞ | — | 0.02% |
| 100 m (328 ft) | 8.84 m | ∞ | ∞ | — | 0.01% |
Try other settings#
Near limit—
Far limit—
Depth of field—
Hyperfocal distance—
In front / behind—
40 mm at other apertures (subject at 3 m)#
Other focal lengths at f/11#
Same lens settings on other formats#
When to use it#
At f/11, a 40 mm lens on Micro Four Thirds is a natural choice for landscapes and architecture where front-to-back sharpness matters. Focused at 3 m you get 2.02 m of sharp zone; for maximum front-to-back sharpness focus at 9.74 m and everything from 4.87 m to infinity will be acceptably sharp.
See also the f/11 aperture guide.
Frequently asked questions#
What is the depth of field of a 40mm lens at f/11?
On Micro Four Thirds, focused at 3 m, it is 2.02 m; at 1 m it is 20.0 cm.
What is the hyperfocal distance for 40mm f/11?
9.74 m (31.9 ft) on Micro Four Thirds. Everything from 4.87 m to infinity is acceptably sharp.
Last updated October 03, 2026 · How we calculate · Sources