Spot meter
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| Spot meters: Soligor II, Pentax Spotmeter V (analog), Pentax digital, and Minolta Spot Meter F image by rst12 (Image rights) |
A spot meter is an exposure meter that measures reflected light from a narrow portion of a scene. Compared to more common reflective meters that cover about 25 to 30 degrees, spot meters typically only include an angle of 1 to 5 degrees. Where averaging meters can be fooled by large unusually bright or dark areas, a spot meter permits readings to be taken exclusively from the crucial areas of the subject. However a spot meter may present problems if the chosen area does not represent a scene correctly.
Users of the Zone System[1] frequently employ a spot meter to evaluate the luminance range from the brightest to darkest areas of a subject.
Notes
- ↑ "Zone System" article at Wikipedia.
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