I used to have the 60mm but I sold that along with the EM-5, and with the EM-1 I bought the gear for the 12-50mm but I can't help but feel that the 60mm was much faster to focus.
For the same size subjects, what is your opinion on the lenses? Do you find that the 60mm is faster focussing or am I imagining things? I have the Nauticam SMC - so for max magnification I think I have about the same.
The reason for dropping the 60mm was that when we rent the camera to someone coming from a point and shoot setup they find the FOV of the 60mm to be too tight.