Sigma DN 30mm f/2.8 on Olympus E-M5
The Sigma DN 30mm f/2.8 for Micro Four Thirds is equivalent to a ~60mm f/2.8 on a full frame— a slightly telephoto normal lens.
Just posted in Guide to Mirrorless are some sharpness assessment examples with the Sigma DN 30mm f/2.8 on the Olympus E-M5.