Triangulation scanner (10,10') for measuring an object surface, having • a projection unit for projecting a pattern on the object surface, • at least one first image acquisition unit having a first sensor and one second image acquisition unit having a second sensor, wherein the first and the second image acquisition unit (11a,11b) each have a lens assembly having a first focal length and are each aligned and designed to acquire an image depicting the pattern and to provide corresponding image information, • a control and processing unit for receiving the image information and for deriving distance measured values from the image information, characterized in that • the triangulation scanner (10,10') has a third image acquisition unit having a third sensor and a fourth image acquisition unit having a fourth sensor, wherein the third and the fourth image acquisition unit (12a,12b) each have a lens assembly having a second focal length and are each aligned and designed to acquire an image depicting the pattern and to provide corresponding image information, • the first focal length is less than the second focal length, • the first and second image acquisition unit (11a,11b) form a first stereo pair and the third and fourth image acquisition unit (12a,12b) form a second stereo pair, • the triangulation scanner (10,10') has an acquisition zoom functionality for activating and/or reading out the sensors in such a way that for each sensor a respective first acquisition state and a respective second acquisition state can be provided, wherein a greater image acquisition region of the respective sensor is defined in the first acquisition state than in the second acquisition state, • the first and the second acquisition state of the first sensor correspond to the first and the second acquisition state of the second sensor, whereby a first and a second acquisition zoom level can be provided by the first stereo pair, and • the first and the second acquisition state of the third sensor correspond to the first and the second acquisition state of the fourth sensor, whereby a third and a fourth acquisition zoom level can be provided by the second stereo pair, wherein each acquisition zoom level provides the acquisition of an image corresponding to a field of view defined by the respective acquisition zoom level and the fields of view are each different. • a projection unit for projecting a pattern on the object surface, • at least one first image acquisition unit having a first sensor and one second image acquisition unit having a second sensor, wherein the first and the second image acquisition unit (11a,11b) each have a lens assembly having a first focal length and are each aligned and designed to acquire an image depicting the pattern and to provide corresponding image information, • a control and processing unit for receiving the image information and for deriving distance measured values from the image information, • the triangulation scanner (10,10') has a third image acquisition unit having a third sensor and a fourth image acquisition unit having a fourth sensor, wherein the third and the fourth image acquisition unit (12a,12b) each have a lens assembly having a second focal length and are each aligned and designed to acquire an image depicting the pattern and to provide corresponding image information, • the first focal length is less than the second focal length, • the first and second image acquisition unit (11a,11b) form a first stereo pair and the third and fourth image acquisition unit (12a,12b) form a second stereo pair, • the triangulation scanner (10,10') has an acquisition zoom functionality for activating and/or reading out the sensors in such a way that for each sensor a respective first acquisition state and a respective second acquisition state can be provided, wherein a greater image acquisition region of the respective sensor is defined in the first acquisition state than in the second acquisition state, • the first and the second acquisition state of the first sensor correspond to the first and the second acquisition state of the second sensor, whereby a first and a second acquisition zoom level can be provided by the first stereo pair, and • the first and the second acquisition state of the third sensor correspond to the first and the second acquisition state of the fourth sensor, whereby a third and a fourth acquisition zoom level can be provided by the second stereo pair,