The OM 50 f1.4 is one of my favorite lenses. How does it compare to the Oly 45 at f2 and f1.8, respectively? I should have set up a tripod and double checked the focus point for the Oly, but the comparison is still interesting. Focal pts are slightly different and angle of view, but we can still compare bokeh and overall color/contrast. Here is shot 1, Master (no adjusting of OOC jpeg) OM on the left in all cases. Here is shot 1, Adj with Auto Color/Contrast, Definition .3, Vibrancy .1 (my standard Preset for importing into Aperture) and cropped to adj for 50mm vs 45mm. Here is shot 2 Master: Here is shot 2 Adj: I know the shots are not big enough. You can go to https://picasaweb.google.com/thearne3/Olympus45mm?authuser=0&feat=directlink and enlarge. My conclusions: The two lenses show comparable bokeh at this aperture. The OM lens lacks the native contrast of the Oly (shown in the Masters), but this is easily adjusted in PP. Color is also quite similar. Center and edge sharpness (not shown) at 100% are very close. The difference in focal point (my bad) makes this impossible to say with certainty. Hope this is useful, despite the flaws in execution.