f/2.2
Aperture
2.3
Stops less light than f/1
20.66%
Light vs f/1
47.0 cm
DoF: 50 mm at 3 m (FF)
3.0 µm
Airy disk diameter
Depth of field at f/2.2 (full frame)#
| Focal | at 1 m | at 2 m | at 5 m | at 10 m | Hyperfocal |
|---|---|---|---|---|---|
| 16 mm | 54.2 cm | 2.77 m | ∞ | ∞ | 3.89 m |
| 24 mm | 22.6 cm | 95.5 cm | 8.45 m | ∞ | 8.75 m |
| 35 mm | 10.4 cm | 42.8 cm | 2.88 m | 15.1 m | 18.6 m |
| 50 mm | 5.0 cm | 20.6 cm | 1.33 m | 5.64 m | 37.9 m |
| 85 mm | 1.7 cm | 7.0 cm | 45.0 cm | 1.83 m | 110 m |
| 135 mm | 0.6 cm | 2.7 cm | 17.6 cm | 71.5 cm | 276 m |
| 200 mm | 0.3 cm | 1.2 cm | 7.9 cm | 32.3 cm | 606 m |
Diffraction at f/2.2#
Diffraction softening becomes visible at 100% once the Airy disk spans more than about two pixels. It is a gradual effect, not a cliff.
| Sensor | Pixel pitch | Airy disk / pixel | Pixel-level sharpness |
|---|---|---|---|
| Full frame 24 MP | 6.00 µm | 0.5× | no visible loss |
| Full frame 45 MP | 4.39 µm | 0.7× | no visible loss |
| Full frame 61 MP | 3.79 µm | 0.8× | no visible loss |
| APS-C 24 MP | 3.92 µm | 0.8× | no visible loss |
| APS-C 40 MP | 3.04 µm | 1.0× | no visible loss |
| Micro Four Thirds 20 MP | 3.34 µm | 0.9× | no visible loss |
| 1-inch 20 MP | 2.41 µm | 1.2× | no visible loss |
| Smartphone 1/1.3" 50 MP | 1.17 µm | 2.5× | slight softening |
f/2.2 on smaller sensors equals…#
Exposure (brightness) is the same at a given f-number on every format; equivalence describes depth of field and total light.
| Used on | Full-frame equivalent depth of field |
|---|---|
| APS-C (1.5×) | f/3.3 |
| Canon APS-C (1.6×) | f/3.5 |
| Micro Four Thirds (2×) | f/4.4 |
| 1-inch (2.7×) | f/5.9 |
Shutter speed at f/2.2#
| Light | ISO 100 | ISO 400 | ISO 1600 | ISO 6400 |
|---|---|---|---|---|
| EV 15 · Bright sun, distinct shadows (Sunny 16) | 1/6400 s | too bright | too bright | too bright |
| EV 13 · Cloudy-bright, no shadows | 1/1600 s | 1/6400 s | too bright | too bright |
| EV 12 · Heavy overcast / open shade | 1/800 s | 1/3200 s | too bright | too bright |
| EV 10 · Just after sunset | 1/200 s | 1/800 s | 1/3200 s | too bright |
| EV 8 · Bright interior, city street at night | 1/50 s | 1/200 s | 1/800 s | 1/3200 s |
| EV 5 · Home interior at night | 1/6 s | 1/25 s | 1/100 s | 1/400 s |
| EV 2 · Distant city lights | 1.3 s | 0.3 s | 1/13 s | 1/50 s |
| EV -2 · Moonlit landscape | 20 s | 5 s | 1.3 s | 0.3 s |
When to use f/2.2#
f/2.2 is a go-to setting for portraits with some context, events and indoor sport; most zooms are sharpest a stop down from wide open.
Other apertures#
Frequently asked questions#
Is f/2.2 a wide aperture?
Yes — f/2.2 is a wide (fast) aperture that lets in lots of light. Smaller numbers mean larger openings.
How much light does f/2.2 let in compared to f/2.8?
1.62× (+0.7 stops).
Last updated October 03, 2026 · How we calculate · Sources