Examples
- Extremely light (EV20):
ISO100, 1/2000s, f/22 - Normal outside (EV12):
ISO200, 1/250s, f/5.6 - Extremely dark (EV1):
ISO800, 1/4s, f/2 - Sunny f/16 rule (EV15):
ISO100, 1/125s, f/16 - 50mm Portrait:
ISO100, 1/250s, f/1.4 - See some real examples of aperture / shutter speed / ISO combinations.
- Shutter speed
- 1/30 second(s) - 33.3 ms
-
1/30 sec short long exposure - Aperture
- f/2.8 - Small DOF - Fast lens
-
f/2.8 large (fast) small - 18mm lens: aperture diameter = 6.43mm
- Film speed/Sensitivity
- ISO 100 - Slow film (Sunny)
-
100 slow sensitive - Focal length of the lens
- 18 mm
18mm macro tele 
- Focal Length: 18 mm (analog) - 27 mm (digital SLR)
- Zoom: zoom out vs normal: 2.8X
- Picture angle: 100.5° (diagonal)
- Light conditions
-
This is an estimation of the amount of light that is present in your scene.
Low (wide) aperture, slow shutter, high ISO: it's probably very dark.
High (narrow) aperture, fast shutter, low ISO: it's probably very bright.
40.0% - (Quite dark)
Exposure Value: [EV 8] (FP)Very dark Dark Light Very light 40
| Film speed/light sensitivity (ISO/ASA) | |||||||
|---|---|---|---|---|---|---|---|
| 50 | 100 | 200 | 400 | 800 | 1600 | 3200 | |
| f/1 | 1/125 | 1/250 | 1/500 | 1/1000 | 1/2000 | 1/4000 | - |
| f/1.4 | 1/60 | 1/125 | 1/250 | 1/500 | 1/1000 | 1/2000 | 1/4000 |
| f/2 | 1/30 | 1/60 | 1/125 | 1/250 | 1/500 | 1/1000 | 1/2000 |
| f/2.8 | 1/15 | 1/30 | 1/60 | 1/125 | 1/250 | 1/500 | 1/1000 |
| f/4 | 1/8 | 1/15 | 1/30 | 1/60 | 1/125 | 1/250 | 1/500 |
| f/5.6 | 1/4 | 1/8 | 1/15 | 1/30 | 1/60 | 1/125 | 1/250 |
| f/8 | 1/2 | 1/4 | 1/8 | 1/15 | 1/30 | 1/60 | 1/125 |
| f/11 | 1/1 | 1/2 | 1/4 | 1/8 | 1/15 | 1/30 | 1/60 |
| f/16 | 2 | 1/1 | 1/2 | 1/4 | 1/8 | 1/15 | 1/30 |
| f/22 | 4 | 2 | 1/1 | 1/2 | 1/4 | 1/8 | 1/15 |
| f/32 | 8 | 4 | 2 | 1/1 | 1/2 | 1/4 | 1/8 |
| f/45 | 16 | 8 | 4 | 2 | 1/1 | 1/2 | 1/4 |
| f/64 | 32 | 16 | 8 | 4 | 2 | 1/1 | 1/2 |
| f/90 | - | 32 | 16 | 8 | 4 | 2 | 1/1 |