1980-82 (2-MS76) Pentax K bayonet lens mount. -> Replaced the MV; very similar except the MV1 has a self timer, data back compatibility and a modified base for compatibility with the ME Winders. MV1 Specifications: * Manual focus. * TTL metering, SPD metering cells. * Aperture priority AE metering only. * Center weighted metering pattern. * LED display in VF * AE compensation: +/- 2 stops (not actually a dedicated dial, but it can be accomplished by referencing special markings on ISO film speed dial). * Dedicated hot shoe and PC sync terminal. * Electronically controlled, vertical moving metal blade shutter by Seiko. * Shutter speed range: 1sec - 1/1000 plus B. * No shutter speed dial for manual shutter speed selection, however... * Mechanical shutter speed settings: 1/100x and B. * Flash sync at 1/100. * ISO film speed range: 25-1600, set manually. * Manual film advance and rewind. * Mechanical cable release socket. * VF info includes flash ready signal, slow exposure warning (yellow LED), overexposure warning (red LED), adequate exposure signal (green LED), battery check lamp. * Stop down metering possible. Optional Dial Data ME Back. Optional Winder ME and Winder ME II. Dedicated flash: AF200S Auto Flash.