In 1860, after Felice Beato left for China to photograph the Second Opium War and Antonio Beato went to Egypt, Robertson briefly teamed up with Charles Shepherd back in Constantinople.
Roku 1860, poté co Felice Beato odešel do Číny, aby fotografoval Druhou Opiovou válku a Antonio Beato odešel do Egypta, Robertson se nakrátko vrátil s Charlesem Shepherdem zpět do Konstantinopole.