Various views of the fourth extravehicular activity (EVA) made to repair the Hubble Space Telescope (HST) include: astronaut Jeffrey A. Hoffman (foreground), anchored to the Remote Manipulator System (RMS) arm, prepares to install the new Wide Field/Planetary Camera (WFPC II) into the empty cavity (top left) on the HST. WFPC I is seen temporarily stowed at bottom right. Astronaut F. Story Musgrave works with a Portable Foot Restraint (PFR) at frame center, as his image is reflected in the shiny surface of the telescope (045-7). View from beneath Hoffman on the RMS arm as he holds the specially designed guide rails used for moving the WFPC I (048-9). Dark views of Musgrave standing on the PFR (050-5). Views of Hoffman on RMS arm with 35mm camera, photographing Musgrave and the HST (056-8). Hoffman on RMS arm and Musgrave on PFR, are photographed working on the WFPC II camera installation (059-63). View of bay on HST after installation of WFPC II camera (064-71).