Ben Kreimer, a journalism technologist at the Drone Journalism Lab explains some of the work he's done with drones using off-the-shelf equipment, one example being a collaboration with Vice where he used drone video footage to create an immersive 3D model of Nairobi. To view this slideshow including video, visit http://benkreimer.com/drones/newsrewired. The presentation was part of the news:rewired digital journalism conference, held in London on Tuesday 3 February. See more coverage from the day at www.newsrewired.com