Astronaut Jeffrey Hoffman on RMS robot arm during HST repairs

S61-E-017 (6 Dec 1993) --- Astronaut F. Story Musgrave uses one of the handrails on the Hubble Space Telescope (HST) during the second of his three sessions of STS-61 extravehicular activity (EVA-3). Astronauts Musgrave and Jeffrey A. Hoffman used this particular EVA to change out the Wide Field/Planetary Camera (WF/PC) and two magnetometers (also known as magnetic sensing systems). The photo was recorded with the Electronic Still Camera (ESC) inside Endeavour's cabin. Electronic still photography is a relatively new technology which provides the means for a handheld camera to electronically capture and digitize an image with resolution approaching film quality. The electronic still camera has flown as an experiment on several other shuttle missions.