EP250111a: SAO RAS optical upper limit

We observed the field of X-ray transient EP250111a detected by EP (Zhao et al., GCN 38905) and Swift (Kennea et al., GCN 38910) with the SAO RAS 1-m telescope Zeiss-1000 on January 11, 18:51:53--19:56:25 UT (t_mid - T0 = 18.057 hours = 0.7524 days). We obtained 10 x 300 sec. images in Rc band. We did not detect the OT (Fu et al., GCN 38906; Pankov et al., GCN 38913; Zheng et al., GCN 38916) in the stacked image down to the limiting magnitude of R_lim > 21.15 (calibrated anainst nearby USNO-B1 stars and not corrected for the MW extinction).