(Venice 1842 – St. Moritz 1911)
He was not personally a photographer but he contributed, as a publisher, in a fundamental way to the advancement of the heliotype process in reproducing images. He began his career at a Venetian bookshop with the Münster brothers, then purchasing it when he was only 19 years old, in 1861. From that moment on, his publishing activity grew thanks to the facsimile reproductions of illustrated books from the 1500s and 1600s. During 1877–1887 he became interested in the monumental decorations of the Basilica di San Marco in Venice, with 425 heliograph and chromolithograph plates, based on the photographs of Carlo Jacobi and Oreste Bertani. The catalogue of illustrated works published by Ongania includes over 50 titles, all illustrated with the heliotype technique, which at the time of his death would be surpassed by half-tone processes.