His subjects included architectural studies, of which he produced a number of popular 'sets' and landscapes. He received various medals and awards for his etchings. It was during this time that he published a number of sets of etchings (such as "The Clyde Set", "The North Holland Set" and "The North Italian Set"). In general his prints feature areas of great darkness, offset by highlights. Cameron would later become known for his church interiors and barren landscapes of Scotland done in drypoint. The feathery lightness of these drypoints was in visual contrast with the rock and water of the subjects. He became highly sought after by collectors, until the Great Crash of 1929 brought a collapse in prices for prints in general. He exploited his popularity by producing an unprecedented number of states of his prints, and is believed to hold the record at twenty-eight states in one case.