Albrecht Altdorfer produced some Italianate religious prints, but he is most famous for his very Northern landscapes of drooping larches and firs, which are highly innovative in painting as well as prints. He was among the most effective early users of the technique of etching, recently invented as a printmaking technique by Daniel Hopfer, an armourer from Augsburg. Neither Hopfer nor the other members of his family who continued his style were trained or natural artists, but many of their images have great charm, and their "ornament prints", made essentially as patterns for craftsmen in various fields, spread their influence widely.