Method for measuring a magnetic field distribution in a spatial volume to be measured, using a magnetic resonance tomograph and a field camera for capturing a magnetic field distribution by means of a magnetic resonance measurement, wherein the field camera has: a number of M samples, which are distributed over a spatial volume to be measured; a number of N receive antennas, wherein the receive antennas each have a receive volume, in which the magnetic resonance signal produced in the receive antenna by the sample is not attenuated by more than 40 dB relative to a maximum level that can be generated by the sample, and are arranged relative to the spatial volume to be measured in such a way that two of the M samples are arranged in at least one of the receive volumes and the receive volumes are at least partially separate, and at least one sample is arranged in each receive volume, wherein the number N of receive antennas is greater than or equal to the number M of samples, wherein the method has steps as follows: capturing a sensitivity matrix for the receive antennas, with a sensitivity E mn for each sample m at each receive antenna n, using the magnetic resonance tomograph; capturing, by means of the N receive antennas, N antenna signals A n of the M samples in a magnetic field to be measured, using the magnetic resonance tomograph; determining the M magnetic resonance signals S m of the individual samples from the N antenna signals A n as a function of the sensitivity matrix E mn, using a controller, wherein the magnetic resonance tomograph has a gradient system and the field camera is arranged in the magnetic resonance tomograph, characterised in that the step of capturing a sensitivity matrix additionally has the substeps: determining a magnetic field gradient, under whose influence each sample is subjected to a different magnetic field; generating the determined field gradient by means of the gradient system during the capture of the sensitivity matrix E mn. a number of M samples, which are distributed over a spatial volume to be measured; a number of N receive antennas, wherein the receive antennas each have a receive volume, in which the magnetic resonance signal produced in the receive antenna by the sample is not attenuated by more than 40 dB relative to a maximum level that can be generated by the sample, and are arranged relative to the spatial volume to be measured in such a way that two of the M samples are arranged in at least one of the receive volumes and the receive volumes are at least partially separate, and at least one sample is arranged in each receive volume, wherein the number N of receive antennas is greater than or equal to the number M of samples, wherein the method has steps as follows: capturing a sensitivity matrix for the receive antennas, with a sensitivity E mn for each sample m at each receive antenna n, using the magnetic resonance tomograph; capturing, by means of the N receive antennas, N antenna signals A n of the M samples in a magnetic field to be measured, using the magnetic resonance tomograph; determining the M magnetic resonance signals S m of the individual samples from the N antenna signals A n as a function of the sensitivity matrix E mn, using a controller, capturing a sensitivity matrix for the receive antennas, with a sensitivity E mn for each sample m at each receive antenna n, using the magnetic resonance tomograph; capturing, by means of the N receive antennas, N antenna signals A n of the M samples in a magnetic field to be measured, using the magnetic resonance tomograph; determining the M magnetic resonance signals S m of the individual samples from the N antenna signals A n as a function of the sensitivity matrix E mn, using a controller, wherein the magnetic resonance tomograph has a gradient system and the field camera is arranged in the magnetic resonance tomograph, characterised in that the step of capturing a sensitivity matrix additionally has the substeps: determining a magnetic field gradient, under whose influence each sample is subjected to a different magnetic field; generating the determined field gradient by means of the gradient system during the capture of the sensitivity matrix E mn. determining a magnetic field gradient, under whose influence each sample is subjected to a different magnetic field; generating the determined field gradient by means of the gradient system during the capture of the sensitivity matrix E mn.