Konica's Autoreflex T3n — updated shutter-priority AE SLR, AR mount, mechanical shutter, 1975.
The Konica Autoreflex T3n is a 35mm film SLR made by Konica and introduced in 1975 as an updated version of the Autoreflex T3 within the AR-mount Autoreflex line. It kept the T3's core design while adding handling changes, and was marketed under the Autoreflex name in the United States. It sits as a mid-range enthusiast body.
It is a single-lens reflex for 35mm film using the Konica AR bayonet mount. The T3n has a metal focal-plane shutter with a top speed of 1/1000 second and a Bulb setting, plus through-the-lens centre-weighted CdS metering. Its main automatic mode is shutter-priority, where the photographer sets the shutter and the body chooses the aperture, with manual control also available. The shutter is mechanically timed and works without a battery; the cell powers the meter and finder readout only.
The T3n suits general photography, street, travel and portrait work, and is aimed at users who want reliable shutter-priority automation with a manual option. It shares the heavy, solid feel of the T3 and a clear viewfinder. Its strengths are build and automation; its limits are the weight and reliance on ageing meter parts for accurate readings.
On the used market, inspect the foam light seals and mirror-damper foam, which commonly perish and need renewing. Check the shutter at all speeds for capping or slow-speed faults, test film advance and rewind, and confirm the meter reacts to light. The meter was designed for 1.35V mercury cells (PX625/625 type), so allow for a shift with modern batteries; the mechanical shutter still fires when the battery is dead. Check the prism and focusing screen for haze and desilvering.