A versatile high magnification Kerr magneto-optic microscope and measuring electronic system has been developed from a design based on a single objective lens . An analogue to digital signal recovery system enabled measurements of the surface magnetization levels to be obtained at high magnification on well defined areas of less than 4 µm X 4 µm on optically imperfect surfaces. Use of the equipment in the transverse, polar or longitudinal mode is possible and it’s application to dynamic magnetization measurements ( for example in bubble domain propagation elements ) and static domain wall structure is described