I have some OM gear, an M1, an OM4Ti, and an OM1. My favorite lens is the old MIJ 50/1.8, and I have a copy on each of my cameras. I've had any number of Zuiko lenses, but I've kept just a few, the 24/2.8, 55/1.2, and 90/2 Macro. The 90/2 macro is probably the best lens of any maker which I have ever used, and I've used hundreds.