IMAGE PICKUP APPARATUS THAT HAS TWO PHOTOMETRIC MEANS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

摘要

An image pickup apparatus which is capable of shortening a time period required for photometric measurement and obtaining an accurate photometric measurement value when there has been a shift from a photometric measurement operation using an image pickup device to a photometric measurement operation using a linear photometric sensor. When there has been no shift from a photometric measurement operation by the image pickup device to a photometric measurement operation by the photometric sensor, the photometric sensor performs a first photometric measurement operation for a plurality of times, and when there has been a shift from a photometric measurement operation by the image pickup device to a photometric measurement operation by the photometric sensor, a second photometric measurement operation is performed for a smaller number of times than that of the first photometric measurement operation according to a result of photometric measurement performed by the image pickup device.

主权项

1. An image pickup apparatus comprising:
an image pickup device configured to perform photoelectric conversion of a subject image formed through a shooting optical system of a lens barrel and output an electric signal; a linear photometric sensor configured to measure an amount of light; a photometric measurement control unit configured to control a photometric measurement operation of said image pickup device and a photometric measurement operation of said photometric sensor; and a judgment unit configured to judge whether there has been a shift from a photometric measurement operation by said image pickup device to a photometric measurement operation by said photometric sensor, wherein, when said judgment unit judges that there has been no shift from a photometric measurement operation by said image pickup device to a photometric measurement operation by said photometric sensor, said photometric measurement control unit causes said photometric sensor to perform a first photometric measurement operation for a plurality of times, and when said judgment unit judges that there has been a shift from a photometric measurement operation by said image pickup device to a photometric measurement operation by said photometric sensor, said photometric measurement control unit performs a second photometric measurement operation for a smaller number of times than that of the first photometric measurement operation according to a result of photometric measurement performed by said image pickup device.