John Perkins' best photograph " an Egyptian lion-tamer
'This is Hamada with Richard the lion. Hamada was two when he first put his head in a lion's jaws'I started photographing the Egyptian state circus when I moved to Cairo in 2007. That's where I met Hamada the lion-tamer. He is from a long line: his father, grandmother, grandfather and great-grandfather were all in the business. He first took part in his father's show when he was just two years old: he would ride on t…