Praktica's electric-contact M42 SLR — the PLC, open-aperture TTL CdS, manual exposure, 1971.
The Praktica PLC is a 35mm film SLR made by VEB Pentacon in Dresden, East Germany, in the early 1970s as part of the L-series family. Like the LLC it used electrical aperture contacts in the M42 mount to allow open-aperture through-the-lens metering with dedicated electric-contact lenses, an unusual capability for a screw-mount body of the period.
It is an M42 screw-mount SLR with a vertical-travel metal focal-plane shutter offering speeds to 1/1000 plus B. The PLC has a battery-powered CdS through-the-lens meter with a match-needle display; with electric-contact lenses it meters at full aperture, while conventional M42 optics are metered stop-down. Exposure is manual. The mechanically timed shutter fires without a battery, though the meter needs a cell to read.
The PLC suits students and general users wanting TTL metering with the convenience of open-aperture composition when matching lenses are used. It shares the solid, plain handling of the L-series, and its main appeal is the electric-contact metering system; the trade-off is that the fullest benefit depends on the specific contact lenses rather than any random M42 optic.
Buying used, test the CdS meter with a fresh cell and remember the design expected a mercury cell around 1.35V, shifting readings on modern batteries. Confirm the electric lens contacts are clean and the meter tracks the aperture ring on a contact lens. Inspect foam light seals and mirror-damper foam for perishing, run the shutter through its range for capping, check the prism for desilvering, and verify advance, rewind and screen condition.