These screen feedbacks captured by Evan Bech are so good. This is a well known technique used by digital and video artists. As Wikipedia says; Optical feedback is the optical equivalent of acoustic feedback. A simple example is the feedback that occurs when a loop exists between an optical input, e.g., a video camera, and an optical output, e.g., a television screen or monitor (more).
What I find interesting in these pieces is the volume of the three-dimensional forms Evan Bech has provided through the feedback, also the visual source he has used it is very beautiful. See more;
via | Creative Applications