1. A device for measuring at least one camera having an image sensor, comprising: a camera support for accommodating the at least one camera to be tested in at least one camera position; a collimator device for emitting collimator light of a test pattern having different object distances; and a mirror system for deflecting the collimator light to the camera position, wherein: the mirror system includes: at least one first mirror device, a mirror adjustment device by which the first mirror device is pivotable into multiple pivot positions, and a second mirror device having multiple second mirror units, the second mirror units reflect a light emitted by the first mirror device in the multiple pivot positions of the first mirror device to the camera position for imaging the test pattern in different image regions of an image sensor.