^ Shutter speeds range from 1 to 1⁄ 400 sec.Mamiya-Sekor lenses for Mamiya C TLR : 14–20 Focal length Mamiya C twin-lens reflex cameras Nameģ + 21⁄ 32 in × 6 + 1⁄ 4 in × 4 + 1⁄ 4 in One of the changes from the C330 to the C330f, for example, was the inclusion of a focusing track lock on the latter. The later C330f, C220f, and C330S were refined versions of their respective base cameras, and carried the letter annotation on a nameplate below the lens mount. The final two lenses (55mm and 250mm) also were introduced at about this time. The C220 (April 1968) and C330 (October 1969) models were developed from the C22 and C33, respectively, with updated styling (the prominent nameplate now had chrome lettering on black) and a built-in switchable pressure plate to enable the use of 220 film. Both were the first Mamiya C TLRs that were able to use 220 film, but a different back was required. : 26–27 The main distinguishing feature was the C33 had more automated operation, where winding the film also cocked the shutter automatically the C22 required two separate actions. C22 was aimed at amateurs and had fewer features, which also made it lighter than the C33, which were intended for professionals. The line was split in the mid-1960s with the C33 (April 1965) and C22 (March 1966) models. : 26 The C3 also moved to a crank for film advance, speeding up camera operation. At this time, the lenses used a new shutter mechanism with a faster minimum speed.

The 'Mamiyaflex' name was dropped for 'Mamiya' when the C3 was introduced in February 1962 the C3 featured updated styling, adding the name above the lens mount and switching to a gray leather body covering. In addition, two more lenses (65mm, 180mm) joined the line. : 26 The C2 was introduced in June 1958 and is distinguished from its predecessor with a second focusing knob on the left side of the camera. The Mamiyaflex C was accompanied with 80mm, 105mm, and 135mm lenses. The first in the C series, the Mamiyaflex C, was introduced in 1957 as a follow-on to the earlier Mamiyaflex line, which had included the Automat A (1949) and Automat B (1954) the primary innovation of the C was the introduction of an interchangeable lens mount. Two of the early models were branded with 'Mamiyaflex' on the nameplate attached to the viewfinder all of the other C series cameras were branded with 'Mamiya'. While the basic shape remained the same, the bodies increased with size over time. Mamiya C33 with lens and waist finder removed

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