Praktica's budget metered M42 SLR — the DTL, stop-down CdS TTL, manual exposure, 1970.
The Praktica DTL is a 35mm film SLR from VEB Pentacon in Dresden, East Germany, around 1970, a variant of the metered L-series family. It was a stop-down TTL-metered M42 body sold as an affordable system camera, reaching the UK and export markets as part of the broad Praktica range of the period.
It is an M42 screw-mount SLR with a metal focal-plane shutter offering speeds to 1/1000 plus B. The DTL uses a battery-powered CdS through-the-lens meter operated stop-down, matching a needle in the pentaprism finder after the aperture is closed with a lever. Exposure is manual only. The mechanically timed shutter fires without a battery, while the meter needs a cell to give a reading.
The DTL suits students and general users after a rugged, low-cost metered M42 body and comfortable with stop-down metering. It handles in the plain, dependable manner of the L-series, and the vast supply of cheap M42 lenses keeps a working kit inexpensive; the dimmed metering finder and manual-only operation are the expected compromises.
For a used purchase, confirm the CdS meter responds with a fresh cell and note the design assumed a mercury battery near 1.35V, which shifts readings on modern replacements. Test the shutter across all speeds for capping or a slow curtain, and inspect the foam light seals and mirror-damper foam for the usual perishing. Check the prism for desilvering, the advance and rewind for smoothness, and the stop-down lever and focusing screen for correct function.