The logistics of organizing the photographic session and the required equipment were a challenge to Pia, but he managed to set up two electric lamps of about 1000 candelas each. Since there was no electricity in the cathedral, Pia set up a portable generator. He managed to make a few exposures in the resulting heat before the session was interrupted by the opening of the cathedral doors after the noon closure. The results of this session were not successful once the plates were developed.