<http://schema.org/thumbnailUrl>
<http://nofilmschool.com/sites/default/files/styles/article_medium/public/uploads/2012/01/Nikon-D4-front-back.jpg?itok=505x0i3O>
<http://nofilmschool.com/2012/01/nikon-d4s-video-features-and-clean-hdmi>