Ocean waves possess an abundance of energy that can be harvested by wave energy converters (WECs), but the ocean's dynamic state makes extracting wave energy cumbersome and inefficient. Research into heaving WEC prime movers such as the Salter Cam and the Bristol cylinder show that these shapes have an antenna effect on incident waves at a small range of frequencies, resulting in higher efficiencies and power outputs. The goal of this research is to observe and measure the interaction between an oscillating Bristol cylinder prototype and waves. Image Analysis was also conducted to confirm free surface and WEC characteristics.