Image capturing apparatus, control method of image capturing apparatus, and storage medium

A control method of an image capturing apparatus that shifts an image capturing mode between a first mode in which a filter for attenuating infrared light is inserted to an optical path of an imaging optical system and a second mode in which the filter is removed from the optical path of the imaging optical system to capture an image by the imaging optical system, the control method comprising:

• shifting the second mode to the first mode based on a predetermined threshold value;
• acquiring, in a case where the second mode is shifted to the first mode, a parameter regarding exposure of the image capturing apparatus and a first visible light level indicating brightness of visible light detected by a visible light sensor;
• and
• estimating a second visible light level indicating brightness of visible light entering an image sensor of the image capturing apparatus, based on the parameter regarding exposure,
• determining whether the first visible light level detected by the visible light sensor is normal, based on a difference value between the first visible light level and the second visible light level, and
• changing the predetermined threshold value, based on a result of the determination.

A non-transitory computer-readable storage medium configured to execute a control method of an image capturing apparatus that shifts an image capturing mode between a first mode in which a filter for attenuating infrared light is inserted to an optical path of an imaging optical system and a second mode in which the filter is removed from the optical path of the imaging optical system to capture an image by the imaging optical system, the control method comprising

• shifting the second mode to the first mode based on a predetermined threshold value;
• acquiring, in a case where the second mode is shifted to the first mode, a parameter regarding exposure of the image capturing apparatus and a first visible light level indicating brightness of visible light detected by a visible light sensor;
• and
• estimating a second visible light level indicating brightness of visible light entering an image sensor of the image capturing apparatus, based on the parameter regarding exposure,
• determining whether the first visible light level detected by the visible light sensor is normal, based on a difference value between the first visible light level and the second visible light level, and
• changing the predetermined threshold value, based on a result of the determination.