EV CalculationSunny 16 Rule100% Private
EV 13.0
Exposure Value
Suggested Shutter (keep aperture)
1/125
Suggested Aperture (keep shutter)
f/8.0
Sunny 16 Rule Reference
| Scene | Aperture | EV (ISO 100) |
|---|---|---|
| Snow / Sand | f/22 | ~16+ |
| Sunny (sharp shadows) | f/16 | ~15 |
| Slight Overcast | f/11 | ~14 |
| Overcast | f/8 | ~13 |
| Heavy Overcast | f/5.6 | ~12 |
| Open Shade / Sunset | f/4 | ~11 |
FAQ
What is Exposure Value (EV)?
EV is a number that represents a combination of shutter speed and aperture. Higher EV means brighter scenes. EV 0 corresponds to f/1.0 at 1 second with ISO 100.
What is the Sunny 16 rule?
On a sunny day, set aperture to f/16 and shutter speed to 1/ISO (e.g., 1/100 at ISO 100). This gives correct exposure without a light meter.
How do I use exposure compensation?
If you change one setting (e.g., open aperture by 1 stop), compensate by adjusting another (e.g., double shutter speed) to maintain the same EV.
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