Olympus M.Zuiko Digital ED 60mm f/2.8 Macro

I loved this lens when I used MFT. I am now on full frame but have kept it and a gh4 as it is a great walk around option.

In my opinion this is a great lens. It's small and lightweight, so there is no excuse to not carry it with you. The price is reasonable and sometimes Olympus gives discounts on it. It's definitely the sharpest Lens I own, possibly only rivaled by my PanaLeica 100-400mm, which is a higher prices level and hast different applications.

It can also double as a portrait lens and has further applications.

For me this lens is an absolute essential in the MFT ecosystem.

This lens offers you a great combination of very good optical performance, light weight, compact design and a good price / quality ratio. Photographers with a microfourthirds camera interested in macro photography should definitely put this lens on their wish list.
Even if you are not a macro photographer, but for example a portrait photographer, then this lens is interesting. The lens delivers very high quality at a relatively low price.