Scanner head for high resolution scanning fluorescence microscopy comprising - a housing, - first connection appliances at or in the housing, which are configured for connecting the scanner head to a light microscope, - second connection appliances at or in the housing, which are configured for connecting the scanner head via light guide fibres (7, 9) to an external light source and an external detector for fluorescence light, - beam shaping appliances (12 to 14) which are arranged between the second connection appliances and the first connection appliances and which are configured for shaping a light beam of light from the external light source, and - tilting mirrors (35, 36) which are arranged between the beam shaping appliances (12 to 14) and the first connection appliances and which are configured for deflecting the light beam by different deflection angles in such a way that a sample is scanned with the light beam focussed by the light microscope in two different directions, wherein fluorescence light from the sample is guided back to the second connection appliances, - wherein the beam shaping appliances and the tilting mirrors are enclosed by the housing, characterised in - that the first connection appliances are configured for connecting the scanner head to a camera mount or another fully corrected and/or standardized mount of the light microscope, with regard to which an intermediate image of the light microscope has a defined position, and for mounting the scanner head to the mount of the light microscope in a fixed position, - that the second connection appliances include separate light guide ports (6, 8) for the light from the light source and the fluorescence light to the detector, - that deflection means are arranged between the tilting mirrors (35, 36) and the light guide port for the light to the light source and configured to deflect the fluorescence light towards the light guide port for the fluorescence light, - that the beam shaping appliances (12 to 14) include a beam shaping arrangement with a common light path for two parts of the light from the light source, which shapes the one part of the light from the light source such that it comprises an intensity minimum surrounded by intensity maxima in the focus of the light microscope, whereas it shapes the other part of the light from the light source such that it comprises an intensity maximum at the position of the intensity minimum of the one part of the light from the light source in the focus of the light microscope, and - that two tilting mirrors (35, 36) each with a tilting drive are provided per each direction in which the sample is scanned, wherein the two tilting drives are independently controllable to tilt the two tilting mirrors (35, 36). - a housing, - first connection appliances at or in the housing, which are configured for connecting the scanner head to a light microscope, - second connection appliances at or in the housing, which are configured for connecting the scanner head via light guide fibres (7, 9) to an external light source and an external detector for fluorescence light, - beam shaping appliances (12 to 14) which are arranged between the second connection appliances and the first connection appliances and which are configured for shaping a light beam of light from the external light source, and - tilting mirrors (35, 36) which are arranged between the beam shaping appliances (12 to 14) and the first connection appliances and which are configured for deflecting the light beam by different deflection angles in such a way that a sample is scanned with the light beam focussed by the light microscope in two different directions, wherein fluorescence light from the sample is guided back to the second connection appliances, - wherein the beam shaping appliances and the tilting mirrors are enclosed by the housing, - that the first connection appliances are configured for connecting the scanner head to a camera mount or another fully corrected and/or standardized mount of the light microscope, with regard to which an intermediate image of the light microscope has a defined position, and for mounting the scanner head to the mount of the light microscope in a fixed position, - that the second connection appliances include separate light guide ports (6, 8) for the light from the light source and the fluorescence light to the detector, - that deflection means are arranged between the tilting mirrors (35, 36) and the light guide port for the light to the light source and configured to deflect the fluorescence light towards the light guide port for the fluorescence light, - that the beam shaping appliances (12 to 14) include a beam shaping arrangement with a common light path for two parts of the light from the light source, which shapes the one part of the light from the light source such that it comprises an intensity minimum surrounded by intensity maxima in the focus of the light microscope, whereas it shapes the other part of the light from the light source such that it comprises an intensity maximum at the position of the intensity minimum of the one part of the light from the light source in the focus of the light microscope, and - that two tilting mirrors (35, 36) each with a tilting drive are provided per each direction in which the sample is scanned, wherein the two tilting drives are independently controllable to tilt the two tilting mirrors (35, 36).