First image from the survey, of M51 the Whirlpool Galaxy. This colour composite was made by combining images taken with the three JHK near-infrared filters, from just one of the four detectors in WFCAM.
Composite of 40s exposures in the YJK bands of the barred-spiral galaxy NGC4535. The high-resolution jpeg (160kB) has 1400x1400 pixels of 0.4". N is up, E is to the left. The colour balance was set by calibrating to the AB system, and Lupton's algorithm was employed in combining the three bands.