Exposure / light meter

This is a device used to measure the light, this is mainly used in studio however it can be useful on location. The majority of light meters include either a digital or analog electronic circuit. This allows the photographer set the correct settings in their camera, having the best shutter speed and F-number allows for the optimum exposure. Light meters are also used in cinematography to be able to determine the optimum light level to use in each scene. The earliest type of light meters suffered from the problem that they depended on the light sensitivity of the eye and these were called extinction. After the early incarnations the human element was removed and the light meters relied on technologies incorporating Cds, selenium and silicon photodetectors. Most modern video cameras have a built-in meter which is able to measure an entire scene. However when a photographer is working with controlled lighting they use a handheld light meter to get an accurate measure of light that’s showing o the subject to make sure they produce a desired exposure level. There are many other type of light meters in photography, two are Flash meters which are used to correct exposure and the other is colour meters, these are used when colour reproduction in photographic reproduction.