© Bruno Barbey/Magnum Photos
The photographer died on 30 August, his website confirmed this morning.
Born in 1923, near Lyon, Riboud became a photographer three years after studying engineering between 1945-1948.
At the age of 29, he joined Magnum Photos after meeting Robert Capa and Henri Cartier-Bresson who founded the famous photojournalism agency.
He became Magnum president in 1976.
Magnum president Martin Parr said: ‘Marc’s association with Magnum has been a long and fruitful one.
‘He was a terrific photographer and of particular note was his pioneering work in China, which he first visited in the late 1950s, and continued to photograph over the next three decades.
‘Our thoughts and best wishes go out to his family.’
Riboud’s 1953 photo of a painter at the Eiffel Tower was published in Life magazine – his first publication.
In 2009, Riboud received a Lifetime Achievement Award at the Sony World Photography Awards.
The accolade honoured a ‘lifetime of widely recognised and critically acclaimed work’.
Speaking at the time, fellow photography legend and close friend Elliott Erwitt said: ‘A lifetime achievement award may imply that a career is over. In the case of Marc, nothing could be further from the truth.
‘Marc continues to live and breathe photography every day. With his camera permanently welded to his side he is always looking for the next picture.’
Speaking today, World Photography Organisation CEO Scott Gray told Amateur Photographer: ‘Marc Riboud was a true pioneer of photography and we are saddened by his loss.
‘In 2009, the Sony World Photography Awards presented the Lifetime Achievement Award to Mr Riboud, and we at the World Photography Organisation are both proud and humbled to have worked with one of the masters of [the] medium.
‘Such was the impact that Mr Riboud had on photography, that his iconic images will live on for many years to come.’
Riboud picked up his first camera when he was 14.
Among Riboud’s early assignments was a road trip through the Middle East and Afghanistan to India.
News of his death emerged at the Visa pour L’Image photography festival in Perpignan, France.