85 is a very rich cluster located at a redshift z=0.0555. We performed a detailed analysis of this cluster from the X-ray point of view, based on Einstein IPC data (Gerbal et al. 1992 and references therein). In the optical, no photometric data were available at that time, except for an incomplete photometric catalogue by Murphy (1984), and about 150 redshifts were published in the literature only after we completed our first X-ray analysis (Beers et al. 1991; Malumuth et al. 1992). We therefore undertook a more complete analysis of this cluster, with the aim of obtaining both photometric and redshift data at optical wavelengths and better X-ray data from the ROSAT data bank (Pislar et al. 1997; Lima-Neto et al. 1997). We present here our photometric data. The redshift catalogue is published in a companion paper (Durret et al. 1997a) and the analysis of all these combined optical data will be presented in Paper III (Durret et al., in preparation).