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There were some problems with the lower prism of the ADC not initialising and the ADC was out of order for some time. It was found that the metal tab on the side of the prism that is used by the (inductive) position sensor to determine the initialisation position, was mounted upside down. This was corrected.
The ADC was primarily designed for use with FIES, but can be also be used with ALFOSC or NOTCam, and documentation concerning the ADC was added to the web pages of these instruments.
The guide star server was modified to take in to account the position of the ADC, including the additional vignetting when the ADC is in the light path.