3σ upper limits on variable optical emission associated with GRB 111005A at the position of the radio transient. The solid, thick lines show the SN1998bw template as it would appear at the redshift of GRB 111005A and when reddened by a host A_V = 2 mag assuming a Milky Way type reddening law with an R_V = 3.08, while the thinner lines denote A_V = 0 mag. The downward triangles show various upper limits on the SN emission, with the riJ data from this work, and the K-band and Spitzer upper limits from the data of Michałowski et al. (2018).