GCN Circular 3249
P. Roming (PSU), V. Mangano (INAF-IASF/Palermo), S. T. Holland (GSFC-USRA), W. Landsman (GSFC), P. Schady (PSU & MSSL), D. Hinshaw (GSFC-SPSYS), S. Kobayashi (PSU), A. Blustin (MSSL), N. Gehrels (GSFC), K. Mason (MSSL), J. Nousek (PSU), and A. Wells (Leicester) on behalf of the Swift UVOT team report: The Swift Ultraviolet/Optical Telescope (UVOT) observed the field of GRB 050412 (Cummings et al., GCN 3237) starting at 05:45:40 UT on 12 April 2005. We find no evidence for a source in the 5 arcsecond radius XRT error circle (Tamburelli et al., GCN 3241) in the UVOT data. The 3-sigma limiting magnitudes in a 3.5 arcsecond radius circular aperture is V = 19.1 with a systematic uncertainty of 0.1 mag due to uncertainty in the preliminary flight photometric zero point.