Here it is proposed to implement an off-axis holography layout that utilizes a single wedge prism. A wedge prism covering the half of the exit port of a commercial microscope is directly mounted on this port. A coherent source is attached underneath the trans illumination condenser. The digital camera with the pixel size of 6.5um attached to the microscope is shifted away from the image plane so that an off-axis hologram is formed. Reconstructed holograms are numerically propagated to recover the phase and amplitude images of the sample. An USAF 1951 test target is imaged for the initial performance tests of the systems.