Commissioning the VISTA IR camera

VISTA was designed as a survey facility, and was optimized for use with the 64Mpix VISTA IR Camera in the sense that the optical system of the instrument and telescope was designed as a single entity. The commissioning of the IR camera therefore formed a major part of the system integration and commissioning of the whole VISTA system. We describe some aspects of the commissioning process for VISTA, the interplay between the camera and telescope systems, and summarize the results of the verification phase.