Grönlund-Nisunen Two Views, 2020
LED screen, tablet, surveillance camera application
Dimensions variable
The work plays on the physical properties of light, its transmission and perception. While the LED screen seems to produce a steady glow of white illumination, the ipad--because of the nature of its technological transformation of light waves into digital information--reproduces this sight as a pattern of white and black horizontal bars. That is, the tablet camera filming the LED panel records as horizontal “interfering” lines across the image what a human eye does not see: the intermittent waves constituting the LED light. Comparable to the horizontal lines produced when filming analogue television sets, the work uses a technological glitch to highlight the nature of light and its transformation by various technological means, as well as the limitations of human perception.