A trip to Europe in 1966 with a Pentax camera given him by Ducrot inspired him to become a photographer himself. On his return to New York he worked at Modernage photo lab. Two years later he moved to Paris and joined Vu (photo agency).
Kalvar's work has been featured in solo and group exhibitions in France, including at Agathe Gaillard gallery and at Maison Européenne de la Photographie in Paris. He has worked around the world, especially in England, France, Italy, Japan and the United States.
- Earthlings, Flammarion, 2007, ISBN 978-2-08-030009-6
- Portrait de Conflans-Sainte-Honorine, P.O. Calmann-Lévy, France, 1993, ISBN 978-2-7021-2163-4
- L’Usine, Colgate Palmolive, France, 1987, ASIN B004AEYWEC
- Familles en France, Viva, France, 1973