Mamiya's late-70s compact SLR on the orphaned CS mount — cheap, capable, collectable.
The 1978 Mamiya NC1000s is the refined version of Mamiya's compact 35mm SLR, using the short-lived CS bayonet mount and aperture-priority plus manual exposure.
Light for its era and paired with sharp Mamiya-Sekor CS glass, it sold against the Olympus OM line but never matched its system depth before Mamiya left 35mm SLRs to focus on medium format.
Its significance is as an orphaned-mount curiosity: CS lenses fit nothing else, so clean kits circulate cheaply and the camera has a small following among collectors of 1970s compact SLRs.
Used buying: these are budget classics - check the meter responds (they take modern S76 cells), confirm the shutter fires across speeds, and remember the CS mount means the kit lens is effectively part of the purchase.