Patent ID: 7619681

Claim:
An image-capturing device comprising: an imaging unit that is configured to perform photoelectric conversion on incident light that is formed on an imaging screen; a first exposure-controlling component; a second exposure-controlling component that includes a device different from a device included in the first exposure-controlling component; a luminance-data extracting unit that extracts luminance data from data read from the imaging unit; and an exposure-adjusting unit that sets control values of the first and second exposure-controlling components to corresponding predetermined values that are less than respective maximum values such that corresponding devices that constitute the first and second exposure-controlling components can be driven, and drives the first and second exposure-controlling components to adjust exposure, wherein the control values are set on the basis of comparing the luminance data with a predetermined target luminance value for a first time, and wherein, when it is determined that the control value of the first exposure-controlling component exceeds the corresponding predetermined value, the exposure-adjusting unit adjusts the control value of the first exposure-controlling component to a value that is equal to or less than the corresponding predetermined value, then the exposure-adjusting unit sets the control value of the first exposure-controlling component again on the basis of the result of comparing luminance data that is obtained after the adjustment described above and the predetermined target luminance value.