Best settings and equipment for ouside at night of couple on a lit bridge?

[capturedexpressions]

Equipment and settings recommendations? What would be the best ISO for the available light? I imagine a tripod will be needed for the slow exposure. Any advice?

[tim]

ISO1600 F2.8 Av, maybe a bit of fill flash FEC-2 or so off camera if possible, or a video light, tripod if possible. That's what i'd start with anyway. Lower the ISO if you can but keep the shutter speed up - grain I can live with, blur I can't.

[Philco]

85mm F1.8 might not be a bad choice either...creamy bokeh. Video light or diffused 'deer light' (rechargeable spotlight) held by as asst, with a high ISO.