Left: image and channel crosstalk images of the reference star U1200−07227692. The center of the reference star is indicated as source. These crosstalk images have separations of exactly 64 pixels, the width of each of the 32 parallel amplifier channels of the LUCI HAWAII2-RG detector. The well-separated images of the individual components of the reference star are remarkable. Right: logarithmic image of the center of the reference star to show the two components separated by . The Ks-band image is taken at PA = 135°.