Image pickup apparatus, lens apparatus, imaging system, control method, and storage medium

1 . An image pickup apparatus connectable to a lens apparatus, the lens apparatus being configured to add a reverse tilt imaging effect by providing tilt drive by an actuator of the lens apparatus, the image pickup apparatus comprising:

an image processing unit configured to add the reverse tilt imaging effect to an image, acquired through the lens apparatus, using image processing; and

a processor configured to determine whether to add the reverse tilt imaging effect to the image using at least the image processing or at least the tilt drive.

2 . The image pickup apparatus according to claim 1 , wherein the processor is configured to determine whether to add the reverse tilt imaging effect to the image using only the image processing, only the tilt drive, or both the image processing and the tilt drive.

3 . The image pickup apparatus according to claim 2 , wherein in a case where the processor determines that the reverse tilt imaging effect is to be added using only the image processing, the processor is configured to add the reverse tilt imaging effect through the image processing of the image processing unit while fixing an optical element of the lens apparatus, and

wherein in a case where the processor determines that the reverse tilt imaging effect is to be added using only the tilt drive, the processor is configured to perform the tilt drive without performing the image processing.

4 . The image pickup apparatus according to claim 3 , wherein in a case where the processor determines that the reverse tilt imaging effect is to be added using both the image processing and the tilt drive, the processor is configured to add the reverse tilt imaging effect through one of the image processing and the tilt drive, and then add the reverse tilt imaging effect through the other of the image processing and the tilt drive.

5 . The image pickup apparatus according to claim 2 , wherein in a case where the processor determines that the reverse tilt imaging effect is to be added using both the image processing and the tilt drive, the processor is configured to add the reverse tilt imaging effect through the image processing and then add the reverse tilt imaging effect through the tilt drive.

6 . The image pickup apparatus according to claim 1 , wherein before the reverse tilt imaging effect is added, the processor is configured to move a tilt position of the lens apparatus to a position where a lens principal plane of the lens apparatus is parallel to an imaging surface.

7 . The image pickup apparatus according to claim 1 , further comprising an operation unit operable by a user,

wherein the processor is configured to determine a method of adding the reverse tilt imaging effect according to a signal obtained from the operation unit.

8 . An imaging system comprising:

a lens apparatus configured to tilt drive by an actuator; and

the image pickup apparatus according to claim 1 .

9 . A lens apparatus attachable to and detachable from an image pickup apparatus having an image processing unit configured to add a reverse tilt imaging effect using image processing, the lens apparatus comprising:

an optical element;

an actuator configured to move the optical element to perform tilt drive; and

a processor configured to control the actuator,

wherein the image pickup apparatus determines whether to add the reverse tilt imaging effect to the image using at least the image processing or at least the tilt drive, and

wherein the processor is configured to control the actuator to perform the tilt drive in a case where the processor receives a signal from the image pickup apparatus instructing to perform the tilt drive to add the reverse tilt imaging effect.

10 . A control method for an image pickup apparatus connectable to a lens apparatus, the lens apparatus being configured to add a reverse tilt imaging effect by providing tilt drive by an actuator of the lens apparatus, the control method comprising:

determining whether to add the reverse tilt imaging effect using at least image processing to an image acquired through the lens apparatus, or to add the reverse tilt imaging effect using at least the tilt drive; and

adding the reverse tilt imaging effect according to a result of the determining.

11 . A non-transitory computer-readable storage medium storing a program that causes a computer to execute the control method according to claim 10 .

12 . A control method for a lens apparatus attachable to and detachable from an image pickup apparatus that includes an image processing unit configured to add a reverse tilt imaging effect using image processing, the control method comprising:

receiving a signal from the image pickup apparatus instructing to move an optical element to perform tilt drive in order to add the reverse tilt imaging effect; and

controlling an actuator to perform the tilt drive according to the signal,

wherein the signal is received in accordance with a determination of the image pickup apparatus as to whether to add the reverse tilt imaging effect, using at least the image processing, to an image acquired by the image pickup apparatus through the lens apparatus, or to add the reverse tilt imaging effect using at least the tilt drive.

13 . A non-transitory computer-readable storage medium storing a program that causes a computer to execute the control method according to claim 12 .