The first picture of the upcoming Olympus M.Zuiko Digital 17mm f/1.2 PRO lens leaked online. The new lens should be announced together with the rumored OM-D E-M10 III camera.
Olympus already has one 25mm f/1.2 PRO lens and is also expected to announce a third PRO lens: M.Zuiko Digital 45mm f/1.2 PRO.