The camera obscura

Cities and Memory - remixing the world

In the Photographers' Gallery in London, there is a working camera obscura set up in a darkened space, through which you can rotate around a 360 degree view of the streets outside.
In this recording you can hear a video talking about how camera obscuras work, and the sound of the camera itself being rotated to throw different aspects of the view outside onto the screen.
Recorded by Cities and Memory.