This is a lightweight version of the LAOWA ultra-wide-angle lens "7.5mm F2 MFT". For Micro Four Thirds. I was using it with the Olympus OMD EM1 mk2, which I am also selling separately. I found it very useful because of its 110-degree ultra-wide angle and light weight. I am selling it because I am selling my camera. From a layman's perspective, there are no scratches or dust particles on the lens. I think it's a great deal as the used market price is around 35,000 yen. Thank you for looking.