TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3271 SUBJECT: GRB 050416,optical observation DATE: 05/04/16 15:53:23 GMT FROM: Eri Sonoda at U of Miyazaki/Japan E.Sonoda,S.Maeno,Y.Tokunaga,M.Yamauchi (University of Miyazaki) "We have observed the field covering the error circle of GRB 050416 (GCN3264 ; Swift-BAT Trigger time is 11:04:57 UT) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki. The observation was started 11:09:18 UT on Apr.16. After co-adding a set of 5 images (11:09:18 - 11:14:52 UT) of 30 sec exposures, we have compared with the USNO A2.0 catalog. Preliminary analysis shows there is no new source brighter than 16.7 mag. at the reported position by S.Bradley Cenko et al. (GCN3265) and J.A.Kennea et al.(GCN3268)."