Photographing system for setting light emission amount of strobe, illumination apparatus, and control method

An illumination apparatus which includes a light-emitting part to perform a pre-light emission and a main light emission, the light-emitting part being connected to an image pickup apparatus equipped with a photometric circuit to measure a reflected light from a subject, the illumination apparatus comprising:

• at least one memory that stores a set of instructions;
• and
• at least one processor that executes the instructions, causing the illumination apparatus to perform operations comprising:
• acquiring a light emission amount of the light-emitting part in the main light emission which is set by a user within a first range in a manual light-emission mode;
• acquiring a main light emission amount on a basis of a photometry result of the pre-light emission by the photometric circuit in a case where a light-emission amount automatic adjustment starts in the manual light-emission mode;
• and
• changing the light emission amount of the light-emitting part in the main light emission to the acquired main light emission amount in a case where the acquired main light emission amount falls within a second range and is outside the first range,
• wherein the second range includes the first range and is wider than the first range, and
• wherein the second range permits performing automatic light adjustment in the illumination apparatus.

A control method for a photographing system which includes an image pickup apparatus equipped with a photometric circuit to measure a reflected light from a subject and an illumination apparatus equipped with a light-emitting part to perform a pre-light emission and a main light emission, the control method comprising:

• setting a light emission amount of the light-emitting part in the main light emission within a first range by a user operation in a manual light-emission mode;
• calculating a main light emission amount on a basis of a photometry result of the pre-light emission by the photometric circuit when a light-emission amount automatic adjustment starts in the manual light-emission mode after the light emission amount of the light-emitting part in the main light emission is set;
• and
• changing the light emission amount of the light-emitting part in the main light emission to the calculated main light emission amount in a case where the calculated main light emission amount falls within a second range and is outside the first range,
• wherein the second range includes the first range and is wider than the first range, and
• wherein the second range permits performing automatic light adjustment in the illumination apparatus.