The 24mm f2.8 is one that pleases. My most used is the 85mm f2, however that is a personal taste sort of thing. I've owned most of what Olympus made other than the "Big Whites" over the past few years. If I were putting together a light kit, it would have the 24mm f2.8, 50mm F1.4 (1,100,000 + serial number), 85mm f2 and a set of auto extension tubes. Bill Barber