Some digital cameras have a light meter and exposure built in. However, the light meter can get confused in certain cases, such as shooting a snow-covered landscape, when the light meter assumes that all things in the picture are equally reflective.
Using the "Sunny 16" rule helps you understand how to use a light meter outdoors and draw up a table based on exposure values. The rule is based on the fact that the sun is equally bright between 10 a.m. and 5 p.m., so if you know the exposure for sunlight at midday, you can estimate it for cloudy or overcast days. Proper exposure is an aperture setting of f16 for ISO 100.
Instructions
- 1
Make an exposure chart. If you have ISO 1600, the f16 at 1/1600 is the correct exposure. You can construct the rest of the exposure table by using equivalencies:
F16 is 1/1600
F11 is 1/3200
F8 is 1/6500
F5.6 is 1/13000
When making the exposure chart, keep a few things in mind. Since there are no consumer cameras with shutter speeds as high as 13000, you will need to dial back the ISO in bright sunlight; but if it is a cloudy day, light is described by shadows seen or not seen.
3Know your shutter speeds. Know whether or not your camera has automatic exposure and light meter settings. Some are automatic and others use a manual light meter.
4Know the lighting conditions. "Soft Shadows," which is characterized by soft edges, is weak sunlight, and needs one stop more light--or F11 instead of F16 in our example. Cloudy but bright days may require two more stops of light, or F8 and 1/ISO. "Overcast" means no shadows at all, and requires three more stops of light, or F5.6, which is the same as in the shade on a sunny day.
5Purchase or set your light meter. If you do not have a separate light meter, you may not need to purchase one, if your camera has an automatic light meter setting. In the event it is not equipped, you will need to find the light meter that will give you the results you want for your specific conditions and equipment.
Some digital cameras have a light meter and exposure built in. However, the light meter can get confused in certain cases, such as shooting a snow-covered landscape, when the light meter assumes that all things in the picture are equally reflective.
Using the "Sunny 16" rule helps you understand how to use a light meter outdoors and draw up a table based on exposure values. The rule is based on the fact that the sun is equally bright between 10 a.m. and 5 p.m., so if you know the exposure for sunlight at midday, you can estimate it for cloudy or overcast days. Proper exposure is an aperture setting of f16 for ISO 100.
Instructions
- 1
Make an exposure chart. If you have ISO 1600, the f16 at 1/1600 is the correct exposure. You can construct the rest of the exposure table by using equivalencies:
F16 is 1/1600
F11 is 1/3200
F8 is 1/6500
F5.6 is 1/13000
When making the exposure chart, keep a few things in mind. Since there are no consumer cameras with shutter speeds as high as 13000, you will need to dial back the ISO in bright sunlight; but if it is a cloudy day, light is described by shadows seen or not seen.
3Know your shutter speeds. Know whether or not your camera has automatic exposure and light meter settings. Some are automatic and others use a manual light meter.
4Know the lighting conditions.
Enhance your photography skill,The Top Secret Photography Techniques
. "Soft Shadows," which is characterized by soft edges, is weak sunlight, and needs one stop more light--or F11 instead of F16 in our example. Cloudy but bright days may require two more stops of light, or F8 and 1/ISO. "Overcast" means no shadows at all, and requires three more stops of light, or F5.6, which is the same as in the shade on a sunny day. 5Purchase or set your light meter. If you do not have a separate light meter, you may not need to purchase one, if your camera has an automatic light meter setting. In the event it is not equipped, you will need to find the light meter that will give you the results you want for your specific conditions and equipment.
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