Released in 1978, the Mamiya NC1000 was a dramatic departure from the Mamiya SLR's before it. It weighs only 16 oz. (compared to 26, 25 and 24 oz. for the DTL, XTL and MSX/DSX, respectively) and was considered remarkably easy to handle. It had an electronic focal-plane shutter, with speeds from 1 to 1/1000 sec. and a hot shoe mount with 1/60 sec. sync. The meter was a center-weighted CdS cell powered by two MS76 batteries, with the indicator and micro prism split-image visible in the finder. Shutter-priority AE could also be set manually. This series from Mamiya included two cameras: the NC 1000 and NC 1000s. Both had a bayonet mount (CS mount) that was different from other Mamiya bayonet mountings. The NC1000s was released later the same year. Perhaps its most distinctive feature was cosmetic: a pocket holder on the back door that allowed you to keep a film-box end for reference. The NC1000s also allowed for five changes in the focusing screens from the typical rangefinder-spot Fresnel screen to a transparent cross-hair screen. The NC1000s also had a new shutter design at some point of its construction that was claimed to be more stable. There was a name variant of the NC1000, sold by Sears and called the Auto CS 1000MXB in black and Auto CS 1000MX in chrome. Info gleaned from Camerapedia.