The 503 and Other V System Cameras and Components 131
The original Carl Zeiss C lenses made until 1981 had a unique lens barrel design with
interlocked aperture and shutter speed rings with automatic depth-of-fi eld scales, M and X
fl ash synchronization (sync), and the built-in self-timer. It is not recommended to use these
lenses on newer camera models therefore they are not discussed in further detail.
On CF lenses, introduced in 1982, aperture and shutter speed rings are no longer inter-
locked but can be locked together when desired. Figure 6-3 shows how to distinguish C from
the newer types.
Figure 6-3 C lenses (a) can be distinguished from CF, CFi, CB, and CFE types (b) mainly by the
VXM lever on the left side. This control is only on C types.
On CFi lenses, the fl ash connector is equipped with a cable locking device. CFE lenses are
identical to CFi types but also have the electronic Databus connections for the light-metering
system in the 200 camera models.
In the limited line of CB lenses, Carl Zeiss eliminated some features like the F setting. CB
lenses can be used on focal plane shutter cameras (except the 202FA), but the exposure must
be made with the shutter in the lens.
Lenses Without Shutters
The Carl Zeiss F lenses were originally designed for the 2000 camera models and did not
have the electronic coupling to the camera body. F lenses became TCC types with electronic
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