Keld Helmer-Petersen was born in Copenhagen on August 23, 1920. He began taking pictures after finishing school, and his work was already shown at a photo exhibition in Copenhagen in 1940. In addition to training as a bookseller and publisher, he focused particular attention upon colour photography, which was still in its infancy. After studying in the USA, he began working as a professional photographer and for television. From 1964 to 1990, he was a Professor of Photography at the Copenhagen Architecture Academy. He passed away in Copenhagen on March 5, 2013. His archive is kept by his son, Jan.
Keld Helmer-Petersen was featured as a Leica Classic in the LFI magazine, issue 7/2015.