Eccher took interest in photography thanks to his great passion for mountains, one of his preferred subjects along with art photography. In fact, he chose many evocative works, mostly by divisionist and futurist painters, documenting an important moment in the history of Italian art. In the 1980s, he began working with the Province of Trento on cataloging the historic-artistic heritage of Trentino. Afterwards, he was the protagonist, with his climbing friend Cesare Maestri, of a feat that went down in the history of the Dolomites of Brenta: during a climb, on July 10, 1954, he risked his own life by slipping and being suspended in mid-air. With immense courage, Eccher asked his friend who was holding him to run to safety and cut the rope, which got snagged and ultimately saved his life. Among the many Alpine feats, mention must be made of his participation in the first expedition from Trentino to Patagonia, between 1957 and 1958.