The multiangle 3D cross-correlation instrument fully implements the 3D-cross-correlation scheme. It does not only allows for static and dynamic scattering experiments with turbid samples but measures at four angles simultaneously. It thus extends the application of cross-correlation light scattering to time resolved studies where we can for example efficiently investigate the temporal evolution of aggregating or phase separating turbid dispersions. The combination of multi-angle 3D and on-line transmission measurements is an essential prerequisite for such studies. This provides time-resolved information about the overall size and shape of the particles through measurements of the mean apparent radius of gyration and hydrodynamic radius, and also about the weight-average apparent molar mass via the absolute forward scattering intensity.