Astronauts Steven L. Smith and John M. Grunsfeld

Astronaut Steven L. Smith, payload commander, prepares to use a 35mm camera during the final spacewalk of the STS-103 mission. Smith stood on a foot restraint connected to the end of Discovery's Remote Manipulator System (RMS) robotic arm. Astronaut John M. Grunsfeld, mission specialist, worked in the background near the Hubble Space Telescope (HST).