0 a device for measuring how much light there is, especially when taking a photograph --
The light meter uses a dual concentric segmented silicon photodiode to provide spot or centerweighted readings.
It had a built-in microprocessor computer programmed to automatically analyze different segments of the light meter field of view and select a corrected exposure.
Like several of the earlier versions it did feature a built in light meter.
A light meter can automatically calculate the ratio of key plus fill to fill alone.
Some of the higher-end cameras used this notch to determine the correct exposure, or to set the light meter, if so equipped.
On the x-axis of the graph is the distance the light meter moved.
Manually setting a camera to expose the film properly takes two steps, even after taking a light meter reading.
Where will a light meter be placed?
