S88-52469 (8 Nov 1988) --- Astronauts John E. Blaha, left, and Robert C. Springer, STS-29 pilot and mission specialist, respectively, get in some training on the operation of one of the payloads for their upcoming spaceflight aboard Discovery. The crew met with Imax personnel on the JSC grounds to practice using the motion-picture camera, making its first post-Challenger trip into space. The payload flew on a number of earlier STS flights.