Petri (Semi)

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The Petri was a folding camera for 4.5x6cm pictures on 120 film, made by Kuribayashi in 1948. It was the first time Kuribayashi used the name Petri for a camera[1] (the company was later to be renamed Petri in 1962, having used the name for many cameras). It has an uncoupled rangefinder built into the top housing. It also has a small telescopic viewfinder that pops up from the same housing, and a small reflex finder, also built into the housing. The lens is an f/3.5 Petri anastigmat, in a rim-set Petri or Wester shutter giving speeds from 1-1/200 second, plus 'B' and 'T'. The film winding knob is on the 'bottom' of the camera (i.e. not on the top housing).

It was the first of a series of similar cameras:

  • Petri (1948)
  • Petri II (1948-51). Improved by replacing the pop-up viewfinder with a simpler built-in one.
  • Petri III (1948-51). According to McKeown, the lens was replaced for the III, with an f/3.5 75mm Orikon Standardize Four, a Tessar type; however, the example pictured below still has a Petri anastigmat, though in a synchronised shutter.
  • Petri RF (1952). The camera was made more compact, by doing away with the reflex finder. The film winding knob is now in its place (so the direction of travel of the film is reversed). According to McKeown, this model is identical to both the Karoron RF and Karoron S-II.
  • Petri RF 120 (1955). Improved with a coupled rangefinder (still with its eyepiece separate from the viewfinder).
  • Petri Super (1955). Coupled RF, now combined with the viewfinder.
  • Petri Super V (1956).