Gamma is a French photo agency, founded in 1966 by Raymond Depardon, Hubert Henrotte, Hugues Vassal and Léonard de Raemy.
Gamma became a prestigious photojournalism agency: photographers who have worked at Gamma include William Karel, Georges Merillon, Chas Gerretsen, Catherine Leroy, Françoise Demulder, Emanuele Scorcelletti, and Marie-Laure de Decker.
[1] Their name changed to the Eyedea group in March 2007,[2] amidst reports that the agency was in financial distress.
On 28 July 2009, the parent company sought protection from creditors after making a loss of €3 million euro.
[1] In April 2010, the commercial court in Paris ruled that François Lochon, former general director of Gamma Agency, would buy the Eyedea group for 100,000 euro.