White on red and blue
Detail of a computer screen. The line going from bottom left to top right is actually a one pixel wide white line, composed of red, green and blue sub pixels. The image is roughly 2mm wide. Photo was taken with an Olympus OMD-M1.2 and the 60mm macro, 3 extension tubes and a Raynox 250. High-Res shot was used and then cropped.