Digby was engaged ostensibly throughout the 1970s on BBC documentary productions but by the early 1980s a transference to fiction was firmly in place.
This specialisation led to Camera Operating on drama productions for most major networks and film production companies both in the UK and internationally.
By the 1990s he had progressed to become Director Of Photography for commercials and drama productions. Part of his role as Senior Lecturer at AUB has been to forge strong links between the university and the films industry. Digby also continues to carry out consultancy roles in the pre production of Commercial and Fiction productions.