Zhongyi Mitakon Speedmaster 25mm F0.95 Prime Fixed Lens with TARION Storage Bag for Micro Four Thirds MFT M43 M4/3 Mount Mirrorless Cameras Silver

Terrible build quality. The lens mount was loosely screwed onto the lens... could feel it wiggling and I had to retighten the lens mount screws after every time I attached/detatched the lens from my camera. Returned it for the Lumix 25mm f1.7.