  The Gamma-ray Cherenkov Telescope (GCT) is proposed for the Small-Sized
Telescope component of the Cherenkov Telescope Array (CTA). GCT's dual-mirror
Schwarzschild-Couder (SC) optical system allows the use of a compact camera
with small form-factor photosensors. The GCT camera is ~0.4 m in diameter and
has 2048 pixels; each pixel has a ~0.2 degree angular size, resulting in a wide
field-of-view. The design of the GCT camera is high performance at low cost,
with the camera housing 32 front-end electronics modules providing full
waveform information for all of the camera's 2048 pixels. The first GCT camera
prototype, CHEC-M, was commissioned during 2015, culminating in the first
Cherenkov images recorded by a SC telescope and the first light of a CTA
prototype. In this contribution we give a detailed description of the GCT
camera and present preliminary results from CHEC-M's commissioning.
