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70-millimeter stills (Hasselblad Camera)
Three 70-millimeter Hasselblad data cameras were carried by the astronauts on the lunar surface. Two cameras (LM2) were equipped with 60-millimeter focal length lenses; the other had a high-resolution 500-millimeter lens (LM1). These cameras were battery powered, semiautomatic, and, for most operations, attached to the astronauts' pressure suits at chest height. The astronauts could initiate the operation sequence by squeezing a trigger mounted on the camera handle, and the cameras were operable at check stops at each half-stop value. A reseau grid was installed in front of the image plane to provide photogrammetric data, and the cameras were accurately calibrated.