Abstract: The invention relates to an X-ray camera (100) for the high-resolution detection of X-rays (1), comprising a plurality of radiation detectors (10), each of which has a carrier substrate (11), a detector layer (12), and contact electrodes (13). The detector layer (12) contains GaN, lies on the carrier substrate (11), and has a thickness of less than 50 ?m. The contact electrodes (13) form ohmic contacts with the detector layer (12). The X-ray camera also comprises a retaining device (20) on which the radiation detectors (10) are arranged along a specified reference line or reference surface (21). The invention also relates to a method for capturing an image of an object (2, 3) being examined using X-rays (1), said X-ray camera (100) being used in the method.