Abstract: An accessory capable of promptly notifying an electronic apparatus of its state change. The accessory is detachably connected to an electronic apparatus. A first transmission unit transmits first information among information stored in the accessory to the electronic apparatus in response to periodic first communication from a first communication unit of the electronic apparatus. A second transmission unit responds to inquiry by second communication from a second communication unit of the electronic apparatus. A notification unit notifies the electronic apparatus of state change of the accessory when the electronic apparatus is in a first state or a second state and the state of the accessory is changed. In the first state, the first communication is stopped and the second communication unit is in a standby mode. In the second state, power supply to the first communication unit is stopped and the second communication unit is in the standby mode.

Abstract: An accessory capable of promptly notifying an electronic apparatus of its state change. The accessory is detachably connected to an electronic apparatus. A first transmission unit transmits first information among information stored in the accessory to the electronic apparatus in response to periodic first communication from a first communication unit of the electronic apparatus. A second transmission unit responds to inquiry by second communication from a second communication unit of the electronic apparatus. A notification unit notifies the electronic apparatus of state change of the accessory when the electronic apparatus is in a first state or a second state and the state of the accessory is changed. In the first state, the first communication is stopped and the second communication unit is in a standby mode. In the second state, power supply to the first communication unit is stopped and the second communication unit is in the standby mode.

Abstract: A light measurement processing unit controls the driving of a light measurement sensor in a plurality of drive modes. The light measurement processing unit performs light measurement calculation of obtaining the brightness of a subject when a first drive mode is set and calculation of detecting flicker of a photographed scene when a second drive mode is set. Furthermore, the light measurement processing unit performs calculation of detecting a motion vector of the subject between images of continuous frames in the first drive mode. A camera control unit determines a shutter speed by limiting a speed on a high speed side as compared to when flicker is not detected at the time of panning in light exposure control, when flicker is detected at the time of panning on the basis of the calculation result of the light measurement processing unit.

Abstract: An image pickup apparatus which is capable of setting shooting conditions suitable for continuous flash shooting. The image pickup apparatus is connected to a light-emitting apparatus and causes the light-emitting apparatus to emit light when shooting. A light emission mode of the light-emitting apparatus is obtained from the light-emitting apparatus. Exposure control values including at least a shooting sensitivity for use in shooting in a first light emission mode in which automatic light control are determined. In a case where the light emission mode of the light-emitting apparatus is a second light emission mode in which automatic light control for continuous shooting is performed, the determined shooting sensitivity is changed to a greater value before the automatic light control.

Abstract: A light measurement processing unit controls the driving of a light measurement sensor in a plurality of drive modes. The light measurement processing unit performs light measurement calculation of obtaining the brightness of a subject when a first drive mode is set and calculation of detecting flicker of a photographed scene when a second drive mode is set. Furthermore, the light measurement processing unit performs calculation of detecting a motion vector of the subject between images of continuous frames in the first drive mode. A camera control unit determines a shutter speed by limiting a speed on a high speed side as compared to when flicker is not detected at the time of panning in light exposure control, when flicker is detected at the time of panning on the basis of the calculation result of the light measurement processing unit.

Abstract: An image pickup apparatus which is capable of setting shooting conditions suitable for continuous flash shooting. The image pickup apparatus is connected to a light-emitting apparatus and causes the light-emitting apparatus to emit light when shooting. A light emission mode of the light-emitting apparatus is obtained from the light-emitting apparatus. Exposure control values including at least a shooting sensitivity for use in shooting in a first light emission mode in which automatic light control are determined. In a case where the light emission mode of the light-emitting apparatus is a second light emission mode in which automatic light control for continuous shooting is performed, the determined shooting sensitivity is changed to a greater value before the automatic light control.

Abstract: A light emitting system in which a light emission control apparatus wirelessly communicates with at least one controlled light emitting apparatus, the controlled light emitting apparatus comprising a first transmission unit which wirelessly transmits charging state information to the light emission control apparatus, and the light emission control apparatus comprising a receiving unit which receives the charging state information from the controlled light emitting apparatus, an informing unit which informs the image capture apparatus that a charging operation is complete, a second transmission unit which transmits a signal to stop transmitting charging state information, and a third transmission unit which transmits a light emission command to the controlled light emitting apparatus.

Abstract: If an exposure control value set according to a user's instruction is out of an exposure control value control range set according to a user's instruction, the exposure control value control range is changed to a range including the exposure control value set according to the user's instruction.

Abstract: A light emitting system in which a light emission control apparatus wirelessly communicates with at least one controlled light emitting apparatus, the controlled light emitting apparatus comprising a first transmission unit which wirelessly transmits charging state information to the light emission control apparatus, and the light emission control apparatus comprising a receiving unit which receives the charging state information from the controlled light emitting apparatus, an informing unit which informs the image capture apparatus that a charging operation is complete, a second transmission unit which transmits a signal to stop transmitting charging state information, and a third transmission unit which transmits a light emission command to the controlled light emitting apparatus.

Abstract: A light emitting system in which a light emission control apparatus wirelessly communicates with at least one controlled light emitting apparatus, the controlled light emitting apparatus comprising a first transmission unit which wirelessly transmits charging state information to the light emission control apparatus, and the light emission control apparatus comprising a receiving unit which receives the charging state information from the controlled light emitting apparatus, an informing unit which informs the image capture apparatus that a charging operation is complete, a second transmission unit which transmits a signal to stop transmitting charging state information, and a third transmission unit which transmits a light emission command to the controlled light emitting apparatus.

Abstract: If an exposure control value set according to a user's instruction is out of an exposure control value control range set according to a user's instruction, the exposure control value control range is changed to a range including the exposure control value set according to the user's instruction.