Petri's budget TTL SLR — the FT, mechanical shutter, Petri mount, 1967.
The Petri FT was a 35mm film SLR made from 1967 by the Japanese maker Petri, a firm known for affordable cameras. It used the proprietary Petri breech-lock bayonet and brought TTL metering to Petri's SLR range at a budget price before the company ran into financial trouble in the 1970s.
It is a single-lens-reflex camera for 35mm film on the Petri mount. The FT used stop-down TTL metering and a mechanically controlled focal-plane shutter, operated in metered manual, so it can fire without a battery, the cell powering only the meter. Its controls follow the standard SLR layout of the period.
It suits beginners and users after an inexpensive vintage SLR, and the mechanical shutter makes it usable even with a dead meter battery. It is a modestly built camera rather than a high-end one, best suited to casual shooting.
On the used market the FT is cheap but Petri lenses are limited in supply because of the proprietary mount and the firm's later collapse. Check the foam seals and mirror-damper foam, confirm the mechanical shutter fires at all speeds with the battery out, and test the meter, which was designed for a mercury cell. Inspect advance, rewind and screen, and note that Petri build quality is basic and repair support scarce.