X-ray equipment with: - an X-ray source that can be altered in respect of its position and / or alignment; - an aperture arrangement; - a positioning device for positioning an examination object; - an X-ray detector that can be altered in respect of its position and / or alignment; - a detection device (5a, 5b) for detecting the position and / or alignment of the X-ray source and / or of the X-ray detector; - an evaluation device for determining a suitable trigger setting for an X-ray picture, in which the X-ray source and the X-ray detector have such positions (X1, Y1, Z1, X2, Y2, Z2) and alignments (Alfa1, Beta1, Alfa2, Beta2) that an X-ray picture of the examination object can be taken using the X-ray equipment; - a comparison device for comparing positions and / or alignments of the X-ray source and / or X-ray detector with the trigger setting, wherein the signal device is designed to output signals that inform a user that positions and / or alignments of the X-ray source and / or X-ray detector lie in a predetermined range around the trigger setting, and / or that positions and / or alignments of the X-ray source and / or X-ray detector correspond to the trigger setting; and - a signal device for outputting signals that inform a user how a trigger setting is to be achieved; - characterized by a release device for releasing the X-ray equipment for an X-ray picture when the X-ray equipment has a trigger setting; wherein a release is effected by the release device if a current setting of the X-ray equipment matches with a trigger setting, in which the X-ray source and the X-ray detector are aligned so that their middle verticals coincide. - an X-ray source that can be altered in respect of its position and / or alignment; - an aperture arrangement; - a positioning device for positioning an examination object; - an X-ray detector that can be altered in respect of its position and / or alignment; - a detection device (5a, 5b) for detecting the position and / or alignment of the X-ray source and / or of the X-ray detector; - an evaluation device for determining a suitable trigger setting for an X-ray picture, in which the X-ray source and the X-ray detector have such positions (X1, Y1, Z1, X2, Y2, Z2) and alignments (Alfa1, Beta1, Alfa2, Beta2) that an X-ray picture of the examination object can be taken using the X-ray equipment; - a comparison device for comparing positions and / or alignments of the X-ray source and / or X-ray detector with the trigger setting, wherein the signal device is designed to output signals that inform a user that positions and / or alignments of the X-ray source and / or X-ray detector lie in a predetermined range around the trigger setting, and / or that positions and / or alignments of the X-ray source and / or X-ray detector correspond to the trigger setting; and - a signal device for outputting signals that inform a user how a trigger setting is to be achieved; - characterized by a release device for releasing the X-ray equipment for an X-ray picture when the X-ray equipment has a trigger setting; wherein a release is effected by the release device if a current setting of the X-ray equipment matches with a trigger setting, in which the X-ray source and the X-ray detector are aligned so that their middle verticals coincide.