Imaging apparatus, imaging apparatus body, and method of controlling imaging apparatus

1. An imaging apparatus comprising:

an imaging element that photoelectrically converts incident light so as to output an imaging signal;

a stop that adjusts a light amount of the incident light;

a photometric section that performs photometry on the basis of the imaging signal;

an apodization filter that is disposed on an optical path of the incident light;

a program diagram storage section that stores a first program diagram in which an aperture value is fixed at an open aperture value at a first amount of exposure or less and a second program diagram in which an aperture value is fixed at an open aperture value at a second amount of exposure, which is greater than the first amount of exposure, or less;

an imaging exposure determination section that selects the first program diagram in a case where the apodization filter is not disposed on the optical path, selects the second program diagram in a case where the apodization filter is disposed on the optical path, and determines one group of an imaging aperture value and an imaging shutter speed, on the basis of an amount of imaging exposure which is calculated from a photometric value obtained by the photometric section;

a neutral density filter that is inserted into or removed from the optical path; and

a control section that inserts the neutral density filter in the optical path in a case where the apodization filter is disposed on the optical path and a case where the amount of imaging exposure is greater than the second amount of exposure.

2. The imaging apparatus according to claim 1 , wherein a shutter speed corresponding to the second amount of exposure in the second program diagram is faster than a shutter speed corresponding to the first amount of exposure in the first program diagram.

3. The imaging apparatus according to claim 2 , further comprising a mechanical shutter,

wherein the shutter speed corresponding to the second amount of exposure in the second program diagram is faster than the shutter speed corresponding to the first amount of exposure in the first program diagram, and is equal to or less than a limit speed on a high speed side of the mechanical shutter.

4. The imaging apparatus according to claim 2 , further comprising a mechanical shutter,

wherein the imaging element has an electronic shutter function,

wherein the shutter speed corresponding to the second amount of exposure in the second program diagram is faster than a limit speed on a high speed side of the mechanical shutter, and

wherein in a case where the imaging shutter speed is faster than the limit speed, the imaging shutter speed is set through the electronic shutter function.

5. The imaging apparatus according to claim 1 ,

wherein the control section inserts the neutral density filter in the optical path in a case where the amount of imaging exposure is equal to or greater than a third amount of exposure greater than the second amount of exposure, and

wherein an aperture value corresponding to the third amount of exposure in the second program diagram is greater than the open aperture value.

6. The imaging apparatus according to claim 5 ,

wherein the apodization filter obtains an apodization effect in a case where an aperture value is equal to or less than a threshold value, and

wherein an aperture value corresponding to the third amount of exposure in the second program diagram corresponds to the threshold value.

7. The imaging apparatus according to claim 1 , wherein in the first program diagram, in a range greater than the first amount of exposure, an aperture value is set as a discrete value.

8. The imaging apparatus according to claim 1 , wherein in the second program diagram, in a range greater than the second amount of exposure, an aperture value is set as a discrete value.

9. The imaging apparatus according to claim 4 ,

wherein the apodization filter obtains an apodization effect in a case where an aperture value is equal to or less than a threshold value, and

wherein in the second program diagram, in a range from a fourth amount of exposure greater than the second amount of exposure to a fifth amount of exposure greater than the fourth amount of exposure, an aperture value is fixed at the threshold value.

10. The imaging apparatus according to claim 9 , wherein the control section inserts the neutral density filter in the optical path in a case where the amount of imaging exposure is equal to or greater than the fourth amount of exposure.

11. The imaging apparatus according to claim 9 , wherein in the second program diagram, in a range from the second amount of exposure to the fourth amount of exposure, and in a range greater than the fifth amount of exposure, an aperture value is set as a discrete value.

12. The imaging apparatus according to claim 4 , wherein the imaging element is a CMOS sensor, and the electronic shutter function is a rolling shutter system.

13. An imaging apparatus body on which a lens barrel having an apodization filter is mounted, the imaging apparatus body comprising:

an imaging element that photoelectrically converts incident light so as to output an imaging signal;

a stop that adjusts a light amount of the incident light;

a photometric section that performs photometry on the basis of the imaging signal;

a program diagram storage section that stores a first program diagram in which an aperture value is fixed at an open aperture value at a first amount of exposure or less and a second program diagram in which an aperture value is fixed at an open aperture value at a second amount of exposure, which is greater than the first amount of exposure, or less;

an imaging exposure determination section that selects the first program diagram in a case where the apodization filter is not disposed on the optical path, selects the second program diagram in a case where the apodization filter is disposed on the optical path, and determines one group of an imaging aperture value and an imaging shutter speed, on the basis of an amount of imaging exposure which is calculated from a photometric value obtained by the photometric section;

a neutral density filter that is inserted into or removed from the optical path; and

a control section that inserts the neutral density filter in the optical path in a case where the apodization filter is disposed on the optical path and a case where the amount of imaging exposure is greater than the second amount of exposure.

14. A method of controlling an imaging apparatus including an imaging element that photoelectrically converts incident light so as to output an imaging signal, a stop that adjusts a light amount of the incident light, a photometric section that performs photometry on the basis of the imaging signal, an apodization filter that is disposed on an optical path of the incident light, a program diagram storage section that stores a first program diagram in which an aperture value is fixed at an open aperture value at a first amount of exposure or less and a second program diagram in which an aperture value is fixed at an open aperture value at a second amount of exposure, which is greater than the first amount of exposure, or less, an imaging exposure determination section that selects the first program diagram in a case where the apodization filter is not disposed on the optical path, selects the second program diagram in a case where the apodization filter is disposed on the optical path, and determines one group of an imaging aperture value and an imaging shutter speed, on the basis of an amount of imaging exposure which is calculated from a photometric value obtained by the photometric section, and a neutral density filter that is inserted into or removed from the optical path, the method comprising

inserting the neutral density filter in the optical path in a case where the apodization filter is disposed on the optical path and a case where the amount of imaging exposure is greater than the second amount of exposure.