TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3194 SUBJECT: GRB 050408, optical observations DATE: 05/04/08 20:56:55 GMT FROM: Sylvio Klose at TLS Tautenburg S. Klose, U. Laux, and B. Stecklum, Thuringer Landessternwarte Tautenburg, J. Greiner, MPE Garching, report: Tautenburg started observing the field of GRB 050408 (Sakamoto et al. 2005, GCN 3189) at 19:01 UT on Apr 08. Observations were performed in V, R, and I, even though the weather conditions were not good. A first inspection of the R-band images obtained between 19:29 and 19:40 UT does not show a source in the Swift/XRT error circle, implying R>20 about 3 hrs after the burst.