Ricoh's XR-1 — mechanical manual SLR, Pentax K mount, 1977.
The Ricoh XR-1 is a 35mm film SLR made by Ricoh and introduced in 1977 as part of the XR line using the Pentax K bayonet mount. It was among Ricoh's earlier K-mount bodies as the company moved away from screw mount, aimed at enthusiasts and students. It sits in the mid-range of the XR series.
It is a single-lens reflex for 35mm film using the Pentax K bayonet mount. The XR-1 uses a mechanical focal-plane shutter and offers manual exposure with through-the-lens metering shown in the finder. The shutter is mechanically timed and fires without a battery, with the cell powering only the meter. It provides a full manual control set for the photographer.
The XR-1 suits students, general, street and landscape photographers who want a mechanical manual SLR with access to K-mount lenses. Its manual operation and mechanical shutter make it dependable and easy to understand. Its strengths are the mechanical reliability and lens compatibility; its limits are the manual-only exposure and the age of the meter electronics.
When buying used, check the foam light seals and mirror-damper foam, which perish with age. Test the mechanical shutter across all speeds for capping or slow-speed faults, confirm advance and rewind, and check the meter responds. It runs on common button cells for metering, so verify the reading; the mechanical shutter still fires with a flat battery. K-mount lenses fit directly and are widely available.