TITLE: GCN CIRCULAR NUMBER: 12841 SUBJECT: GRB 120116A: WHT optical observations DATE: 12/01/17 00:32:20 GMT FROM: Andrew Levan at U.of Leicester A.J. Levan, S. Parsons (U. Warwick), N.R. Tanvir, K. Wiersema (U. Leicester), T. R. Marsh (Warwick), S. Littlefair (Sheffield) report on behalf of a larger collaboration: We observed the field of GRB 120116A (Melandri et al. GCN 12834) with ULTRACAM on the 4.2m William Herschel Telescope. Observations began approximately 2 hours after the trigger, and 45, 60 second exposures were obtained simultaneously in ug and r. In the XRT error circle we do not locate any sources to preliminary limiting magnitudes of g>25.4, r>24.8, calibrated against SDSS observations of the field.