If you don't have a Light Meter, Here's a great way to set your Camera Exposure outdoors on a SUNNY day! It's called the Sunny 16 rule... also known as the Sunny f/16 rule:
The basic rule is, "On a sunny day set your aperture to f/16 and shutter speed to the ISO film speed."
Example If the sun is shining and your camera is set at an ISO of 200 you can use an aperture of f/16, set shutter speed to 1/200 or 1/250. An ISO of 400 @f/16 would require an aperture of 1/400 etc.
In the same way if you remember these numbers for other lighting situations, You could shoot anywhere without a meter with as close to the correct exposure as possible!
| Aperture | Lighting Conditions | Shadows |
|---|---|---|
| f/22 | Snow/Sand | Dark sharp edges |
| f/16 | Sun | Crisp |
| f/11 | Slight Overcast | Soft edges |
| f/8 | Overcast | Minimal |
| f/5.6 | Heavy Overcast | None |
| f/4 | Open Shade/Sunset | None |
| Add One Stop | Backlighting | n/a |
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