JP2005260455A5 - - Google Patents

Claims (15)

An imaging means for photoelectrically converting an object image;
Amplifying means for amplifying a signal from the imaging means,
Photometric means for performing photometry using the imaging means ;
Anda light emitting means for emitting light to the subject, an imaging apparatus for performing the light emission after performing pre-emission by the light emitting means,
In a state of setting the first gain value by said amplification means performs pre-emission by the first light emission amount, by the photometric means during the pre-emission to obtain a first photometric value, and the photometric values of the first second calculating a light emission amount based on the target photometric value, if greater in the second light emission amount than the third light emitting predetermined amount of the light emission amount at the time of the light emitting said third an imaging device for set so that light emission amount, the gain value when the light emission is characterized by having a control means for setting a larger second gain value than the first gain value.   The imaging apparatus according to claim 1, wherein the control unit calculates the second gain value based on a ratio between the second light emission amount and the third light emission amount. Wherein if the second light emission amount is smaller than the third light quantity, a light emission amount at the time the emission was set to the second light emission amount, the gain value when the main light-emitting first the imaging apparatus according to claim 1 or 2, characterized in that set to 1 gain value. Said third light emission amount, the light emitting means is an imaging device according to any one of claims 1 to 3, characterized in that the maximum light emission amount capable of emitting light.   5. The control unit according to claim 1, wherein the control unit calculates the first light emission amount based on a photometric value obtained by the photometry unit in a state where the light emitting unit is not caused to emit light. The imaging device described.   6. The imaging apparatus according to claim 1, wherein the first gain value is smaller than a third gain value set in a state where the light emitting unit does not emit light.   The imaging apparatus according to claim 1, wherein the second gain value is set to be equal to or less than a third gain value set in a state where the light emitting unit does not emit light. An imaging means for photoelectrically converting an object image;
Amplifying means for amplifying a signal from the imaging means,
Photometric means for performing photometry using the imaging means ;
Anda light emitting means for emitting light to the subject, the control method of an image pickup apparatus which performs the light emission after performing pre-emission by the light emitting means,
A first step of performing pre-emission with a first emission amount in a state in which the amplification unit sets the first gain value;
A second step of obtaining a first photometric value by the photometric means during the pre-emission and calculating a second light emission amount based on the first photometric value and the target photometric value;
A third step of determining whether or not the second light emission amount is greater than a predetermined third light emission amount;
Wherein when the second light emission amount is larger than the third light quantity, a light emission amount at the time the emission was set to be the third light-emitting amount, the gain of the gain value said first during the emission control method for an imaging apparatus characterized by having a fourth step of setting the large second gain value than the value.   9. The imaging apparatus according to claim 8, wherein, in the fourth step, the second gain value is calculated based on a ratio between the second light emission amount and the third light emission amount. Control method. Wherein when the second light emission amount is smaller than the third light quantity, a light emission amount at the time the emission was set to the second light emission amount, the gain value at the time of main light emission to the first gain value method for controlling an image sensing apparatus according to claim 8 or 9 characterized by having a fifth step of setting. Said third light emission amount, the control method of the imaging apparatus according to claims 8 to any one of 10 to the light emitting means, characterized in that the maximum light emission amount capable of emitting light.   The first light emission amount is calculated in the first step based on a photometric value obtained by the photometry means in a state where the light emission means is not caused to emit light. A method for controlling the imaging apparatus according to one of the above.   The method of controlling an imaging apparatus according to claim 8, wherein the first gain value is smaller than a third gain value set in a state where the light emitting unit does not emit light.   14. The method according to claim 8, wherein, in the fourth step, the second gain value is set to be equal to or less than a third gain value set in a state where the light emitting unit does not emit light. The control method of the imaging device described in 1. 15. An imaging control program, which is a program for causing a computer to execute the control method according to claim 8.