A laser light-scattering photometer is presented, the construction of which is based on the principle of a searle-type viscosimeter. It permits registration of the wideangle distribution of the scattered light in an area of 1 ~ sr around the direction of the negative velocity gradient with high resolution (49 9 10 -6 sr).In the investigated range (0-3000 s -i) the scope of shear-induced intensity changes of diluted solutions of polystyrene in benzene is 0.5-5 %. The alignment, controland measurement of several influencing factors, e. g. the positional and intensity stability of the primary beam, required a relatively high degree of performance.The relation of the intensity changes of the scattered and transmitted light are measured and illustrated as a function of shear cycles. In this way it is possible to recognize both the orientation and the deformation as well as the relaxation of shear-stressed PSmolecules. The discussion of the curves is guided by a simple instructional preview.