Incident-light photometers

These photometers use an incident-light meter that measures the amount of light falling on the subject. It is the most accurate of the five photometers. In around 1861, three different types of photometers were adopted for use then, and they are as follows;

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Spot photometers

Here, light readings are gotten from different areas of the subject being photographed, and then the photographer uses these readings so that he/she may know how to set the exposure of the camera for the studied areas.

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Color Photometers

Color photometers measure the amount of light falling on an object along with the intensity of color coming from it. Such photometers are used to balance out the saturation of color and are particularly useful when it comes to photography.

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