Image capturing device and image capturing method

An image capturing device comprising:

• an image capturing section that captures an image by light passing through a lens;
• a diaphragm adjusting section that adjusts an aperture of a diaphragm at the time of image capturing in the image capturing section;
• a shutter speed adjusting section that adjusts a shutter speed at the time of image capturing in the image capturing section;
• a display section that displays an image captured by the image capturing section;
• and
• a state controlling section that changes a first state to a second state by giving instructions to the diaphragm adjusting section and the shutter speed adjusting section while the image captured by the image capturing section is displayed on the display section, and adjusts a focal point of the lens in the second state, wherein
• the first state is a state where the image is captured with a predetermined exposure in which the aperture of the diaphragm is a first aperture and the shutter speed is a first shutter speed,
• the second state is a state where the image is captured with the predetermined exposure in which the aperture of the diaphragm is a second aperture larger than the first aperture and the shutter speed is a second shutter speed higher than the first shutter speed, and
• the state controlling section changes the shutter speed at a change rate corresponding to a change rate of the diaphragm when the first state is changed to the second state.

An image capturing device comprising:

• an image capturing section that captures an image by light passing through a lens;
• a diaphragm adjusting section that adjusts an aperture of a diaphragm at the time of image capturing in the image capturing section;
• a shutter speed adjusting section that adjusts a shutter speed at the time of image capturing in the image capturing section;
• a display section that displays an image captured by the image capturing section;
• and
• a state controlling section that changes a first state to a second state by giving instructions to the diaphragm adjusting section and the shutter speed adjusting section while the image captured by the image capturing section is displayed on the display section, and adjusts a focal point of the lens in the second state, wherein
• the first state is a state where the image is captured with a predetermined exposure in which the aperture of the diaphragm is a first aperture and the shutter speed is a first shutter speed,
• the second state is a state where the image is captured with the predetermined exposure in which the aperture of the diaphragm is a second aperture larger than the first aperture and the shutter speed is a second shutter speed higher than the first shutter speed,
• when the shutter speed to achieve the predetermined exposure in a state where the aperture of the diaphragm is the maximum aperture can be selected, the state controlling section achieves the second state by the shutter speed to achieve the predetermined exposure in a state where the aperture of the diaphragm is the maximum aperture, and the maximum aperture, and
• when the shutter speed to achieve the predetermined exposure in a state where the aperture of the diaphragm is the maximum aperture cannot be selected, the state controlling section achieves the second state by an aperture of the diaphragm that is larger than the first aperture to achieve the predetermined exposure in a state where the shutter speed is a shutter speed higher than the first shutter speed and smaller than the maximum aperture, and the shutter speed higher than the first shutter speed.