  A Cherenkov imaging camera for the CANGAROO-III experiment has been developed
for observations of gamma-ray induced air-showers at energies from 10$^{11}$ to
10$^{14}$ eV. The camera consists of 427 pixels, arranged in a hexagonal shape
at 0.17$^\circ$ intervals, each of which is a 3/4-inch diameter photomultiplier
module with a Winston-cone--shaped light guide. The camera was designed to have
a large dynamic range of signal linearity, a wider field of view, and an
improvement in photon collection efficiency compared with the CANGAROO-II
camera. The camera, and a number of the calibration experiments made to test
its performance, are described in detail in this paper.
