The m43 75mm f/1.8 is reputedly the sharpest prime lens in the m43 stable of lenses according to some reviewers and I concur.
Great for portraits especially pet portraits. For example...
Ok. This is my second attempt using EM5 with 60mm (with raynox 150) All shots are taken at night, handheld. Setting are F8-11 with Aperture mode ISO 400-800 with external flash and manual focussing.