<https://leicarumors.com/2011/12/11/three-new-leica-summilux-c-cinema-lenses.aspx/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://leicarumors.com/2011/12/11/three-new-leica-summilux-c-cinema-lenses.aspx/>