Digital Cameras: Digital single frame cameras are gradually making their appearance on the professional and consumer market. Sony Corporation and Canon both have models that use a small (2 inch) erasable magnetic disk that can accommodate a maximum of 50 images. The cameras can be connected to a standard television set for image display. While digital cameras were not available for use in this project, the product literature suggests that they could play a significant role in an image acquisition system (Model RC-250 by Canon Corp.). Video Systems