The Pentax Spotmatic is another one of those cameras that everyone can agree is a true classic. The original model was introduced in 1964 which was followed by many later models up into the 70's. This particular version is the MD model, which introduced a provision for a motor drive. The Spotmatic was the first Pentax camera to introduce TTL metering, although it is a stop-down meter rather than full aperture metering that would come in later models. It's a large, solid camera that can take a beating and keep going.