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This paper describes a feasibility study of a high magnification full field deformation measurement system. The system consists of an image acquiring and analysis system and an optical metallurgical microscope. It can be used to determine in-plane surface deformations at magnifications up to 2000 pixels/mm. Images from an optical microscope are acquired by using a CCD camera and a digitizing board, and stored in a microcomputer. The surface displacement field is determined by using the digital image correlation method. Displacement gradients on the surface are computed after smoothing the displacement data. By performing a number of experiments and analyzing them, sources of errors in the system and their magnitudes are determined. Methods to minimize these errors are also discussed. It is realized that the system has every potential of quantifying in-plane surface displacement fields and the strains …