Petri FT, I thing that production likely began in at least 1968. It has stop down CdS metering activated by pressing the lever between the shutter release and the lens. The ad places a positive spin on the stop down as opposed to the much preferred open aperture metering by stating: "A touch of the meter lever activates the built-in meter, permits simultaneous check on depth-of-field." Shutter speeds are from 1 to 1/1000 seconds. ASA from 25-1600. They made lenses for it from 28mm to 1000mm. Breech lock mount. The suggested retail price with a 55mm f1.4 lens in January 1969 was $235 and $185 with a 55mm f1.8 lens. $185 in 1969 has the same buying power as $1,158.47 in 2012. While more of a budget camera than a Nikon, Canon or Minolta at the time, that was still a lot of money. Mine was purchased around April 2012 at the Goodwill in La Mesa, CA for $15. It come with a 35mm f2.8 lens that has a dent on the filter threads. The camera is in good cosmetic condition although the shutter release will not fire and the film advance will not turn. Now in good Working 0rder he goes.
Petri FT EE (1969-1973) TTL full aperture metering. It has shutter preferred automatic exposure. You set the shutter, the camera automatically sets the aperture when the Petri lenses marked EE are used. For the automatic setting, the lens aperture ring is set to EE. Fully manual operation is also available. A discussion at the Classic Camera Repair Forum indicates that it was one of the first automatic exposure single lens reflex cameras. (See also photo.net.) Shutter speeds from 1/2 to 1/500 second. Hot shoe. Comes with 55mm f1.8 EE lens. Mine also included a Petri 135mm f3.8 EE lens and a Petri 28mm f3.5 non-EE lens. it also come with the instruction manual, original box I purchased on at the same time as the FT for $42 it is in excellent condition and working order. It does appear to be in good working order except I could not get the meter to operate. The box contains the original price sticker from a store call "Nichols" with a price of $179.99. $179.99 in 1973 has the same buying power as $876.34 in today’s money. Going back to 1969, $179.99 has the same buying power as $1,060.21 in today’s money. This was clearly not a cheap camera. I got another one on May 24, 2012 from an ad on Craigslist in the Point Loma area of San Diego. It is in good working condition. This and a couple of other Petri camera were included when I bought a Mamiya Auto XTL and accessories for $150. P.S. All my Petri are now working> All These were taken, with my Petri FT EE camera. Some just last year and some a long time ago, but with the same camera.