Usually when I’m photographing at TED, I’m using heavy digital SLRs with lots of lenses. This year, however, I’m also making a few fun photos with the most modest of cameras, my iPhone using the Instagram app. Here are a few of my favorites so far as the team gets the venue ready for TED.

Duncan Davidson is the main stage photographer for TED2011 and has been working on various TED events and projects since 2009.