[1] After graduating from West Surrey College of Art and Design in 1986, Sinclair moved to Amsterdam, where he lived for three years.
In 1998 the NPG exhibitted a series of portraits of senior doctors, commissioned and published by the British Medical Journal, as "With Head & Hand & Heart".
Sinclair has completed several other photography projects, including images of student life at Green College, Oxford (1998) and "Scooterlands" 1999, photographs of classic scooters in Italy and India.
In 2007, he was awarded a Winston Churchill Memorial Trust Travel Fellowship to visit China and photograph street level recycling in seven Chinese cities.
One of these projects, "A Drop in the Ocean", photographs of plastic water bottles adrift in the North Sea, was nominated for the international sustainable photography prize, Prix Pictet.