With fellow photographers; David Bailey and Terence Donovan, Duffy was a key player in the ‘Swinging Sixties’ - a culture of high fashion and celebrity chic. Together the 'Black Trinity' as affectionately named by Norman Parkinson (and only ever referred to by their surnames), redefined not only the aesthetic of fashion photography but also the place of the photographer within the industry. Socialising with actors, pop stars, royalty and the notorious Kray Twins, they represented a new breed of photographer and found themselves elevated to celebrity status. Duffy commented on the culture shock the three were to the industry: