Robin Wong:
Olympus M.Zuiko 75mm F1.8 is one of the sharpest lenses from Olympus, and if you want to get the most blur in the background of your shots, rendering extreme shallow depth of field, this is the must have lens. For such a long reach, the 75mm is indeed small, compact and the optics packed into the lens are simply fantastic. I am always impressed with the images taken with the Olympus 75mm F1.8, though I do not use it often, but the small percentage of images are surely keepers.
Olympus 75mm f/1.8 lens at Amazon, Adorama, BHphoto and GetOlympus.