A camera module comprising: a first camera, the first camera configured to capture images in a first imaging range; and a second camera capable of switching between a first imaging direction and a second imaging direction, the second camera configured to capture images in a second imaging range when facing the first imaging direction, and capture images in a third imaging range when facing the second imaging direction; and wherein an overlapping range between the first imaging range and the third imaging range is greater than an overlapping range between the first imaging range and the second imaging range the camera module further comprising a rotary member configured to rotate to switch between a first rotation position, allowing the first camera to capture an image in the first imaging range and the second camera to capture an image in the second imaging range, and a second rotation position,allowing the second camera to capture an image in the third imaging range, a controller, the controller configured to judge whether the first camera has failed, maintaining the first rotation position when judging that the first camera has not failed and control a drive unit to set the rotary member to the second rotation position when judging that the first camera has failed; acquire a first captured image captured by the first camera; execute a first process on the acquired first captured image to generate a first processed image; acquire a second captured image captured by the second camera; generate a second processed image yielded by execution of a second process on the acquired second captured image; and generate a third processed image yielded by execution of a third process on the acquired second captured image, the third process being different from the second process; and a first selector, the first selector being configured to output the first processed image to a first monitor when the second camera is facing the first imaging direction; and output the third processed image to the first monitor when the second camera is facing the second imaging direction. a first camera, the first camera configured to capture images in a first imaging range; and a second camera capable of switching between a first imaging direction and a second imaging direction, the second camera configured to capture images in a second imaging range when facing the first imaging direction, and capture images in a third imaging range when facing the second imaging direction; and capture images in a second imaging range when facing the first imaging direction, and capture images in a third imaging range when facing the second imaging direction; and wherein an overlapping range between the first imaging range and the third imaging range is greater than an overlapping range between the first imaging range and the second imaging range the camera module further comprising a rotary member configured to rotate to switch between a first rotation position, allowing the first camera to capture an image in the first imaging range and the second camera to capture an image in the second imaging range, and a second rotation position,allowing the second camera to capture an image in the third imaging range, a controller, the controller configured to judge whether the first camera has failed, maintaining the first rotation position when judging that the first camera has not failed and control a drive unit to set the rotary member to the second rotation position when judging that the first camera has failed; acquire a first captured image captured by the first camera; execute a first process on the acquired first captured image to generate a first processed image; acquire a second captured image captured by the second camera; generate a second processed image yielded by execution of a second process on the acquired second captured image; and generate a third processed image yielded by execution of a third process on the acquired second captured image, the third process being different from the second process; and judge whether the first camera has failed, maintaining the first rotation position when judging that the first camera has not failed and control a drive unit to set the rotary member to the second rotation position when judging that the first camera has failed; acquire a first captured image captured by the first camera; execute a first process on the acquired first captured image to generate a first processed image; acquire a second captured image captured by the second camera; generate a second processed image yielded by execution of a second process on the acquired second captured image; and generate a third processed image yielded by execution of a third process on the acquired second captured image, the third process being different from the second process; and a first selector, the first selector being configured to output the first processed image to a first monitor when the second camera is facing the first imaging direction; and output the third processed image to the first monitor when the second camera is facing the second imaging direction. output the first processed image to a first monitor when the second camera is facing the first imaging direction; and output the third processed image to the first monitor when the second camera is facing the second imaging direction.