Surveying apparatus (1, 2), in particular scanner, for optically surveying an environment by scanning emission of measurement radiation, comprising • a housing mounted on a base rotatably about a base axis, • a radiation source accommodated in the housing and serving for generating the measurement radiation, • a beam optical unit accommodated in the housing and serving for guiding the measurement radiation out of the housing and forwarding reflection radiation reflected from the environment by a scanned object onto a detector situated in the housing, wherein measurement radiation and reflection radiation at least partly have a common optical path; • a beam deflection unit located in the common optical path and mounted in the housing rotatably about a rotation axis and serving for the adjustable, directional emission of the measurement radiation into the environment and for capturing the reflection radiation from the environment; • comprising a measuring camera (80, 80a, 80b, 80c) integrated into a rotation body of the beam deflection unit and concomitantly rotating with the beam deflection unit upon a rotational movement of the beam deflection unit about its rotation axis and serving for capturing photographic images of the environment to be scanned or the scanned environment; • comprising a processing and control unit for data and image processing and for control of the surveying apparatus (1, 2), characterized in that • the measuring camera, which has a field of view, is equipped and arranged in the rotation unit in such a way that its field of view is aligned in the same direction as the measurement radiation emitted into the environment by a beam deflection element of the beam deflection unit. • a housing mounted on a base rotatably about a base axis, • a radiation source accommodated in the housing and serving for generating the measurement radiation, • a beam optical unit accommodated in the housing and serving for guiding the measurement radiation out of the housing and forwarding reflection radiation reflected from the environment by a scanned object onto a detector situated in the housing, wherein measurement radiation and reflection radiation at least partly have a common optical path; • a beam deflection unit located in the common optical path and mounted in the housing rotatably about a rotation axis and serving for the adjustable, directional emission of the measurement radiation into the environment and for capturing the reflection radiation from the environment; • comprising a measuring camera (80, 80a, 80b, 80c) integrated into a rotation body of the beam deflection unit and concomitantly rotating with the beam deflection unit upon a rotational movement of the beam deflection unit about its rotation axis and serving for capturing photographic images of the environment to be scanned or the scanned environment; • comprising a processing and control unit for data and image processing and for control of the surveying apparatus (1, 2), characterized in that • the measuring camera, which has a field of view, is equipped and arranged in the rotation unit in such a way that its field of view is aligned in the same direction as the measurement radiation emitted into the environment by a beam deflection element of the beam deflection unit.