Photographic technology has in recent decades undergone a series of transformative changes - changes that have resulted in diverse renegotiations of photography. Händelsehorisont / Event horizon analyses the continued effects of analogue photography in digital ecologies. 'Event Horizon' is used here as an image and a concept, as a projection surface and an interface that makes it possible to reflect on the ways in which we meet and hang out with photographic images in contexts of digital production, publication and circulation.