Photographic exposure meaning

Exposure, photographic terminology. Used to be used in black and white movies. Generally speaking, the time that light shines on the film through the lens. The unit of measurement is seconds. From 1 sec to 1 sec in thousands. In modern color photos, the greater the exposure, the greater the chromatic aberration and the white highlights. On the contrary, the smaller the exposure, the darker the dark corners, such as buildings at night.