Ricoh's K-mount film SLR — the KR-10 for Pentax K-mount lens compatibility.
The Ricoh KR-10 is a 35mm film SLR in Pentax K mount from 1978. Ricoh produced K-mount SLRs alongside Pentax — the KR-10 provides access to the entire K-mount lens ecosystem. Manual exposure with match-needle metering. Mechanical shutter. A functional K-mount SLR from a secondary manufacturer at lower pricing than Pentax alternatives.
Basic SLR functionality with K-mount compatibility. Mechanical shutter — works without batteries. Match-needle metering requires battery. The K mount provides access to all Pentax K-mount lenses — the entire ecosystem. Build quality functional Japanese. The KR-10 is a budget alternative to Pentax's own bodies for K-mount lens use.
Pentax K mount — universal K-mount compatibility. Weight varies. Build quality functional Ricoh. Mechanical shutter. 35mm film. The K mount is the key advantage — access to the enormous Pentax-compatible lens ecosystem. Benefits from body SR if adapted to digital Pentax (though this is a film body).
Very cheap. The K mount lens access is the sole significant advantage. A budget K-mount film SLR. Mechanical shutter works without batteries. For budget K-mount film photography. The Pentax ME and MX are preferred Pentax-branded alternatives at similar pricing.