In a medical imaging system and an operating method therefor, in order to simplify the operation of the medical imaging system, a framework condition for the creation of image information is selected on the basis of one or more acquisition sequences, and a computer of the imaging system automatically preselects multiple parameter sets for the at least one acquisition sequence as a function of the selected framework condition. For each of the preselected parameter sets, at least one characteristic from the acquisition sequence or from image information assigned to the acquisition sequence is visually presented. A parameter set is selected on the basis of the presented characteristic.