TTArtisan Meisyo Optics L-Mount 7.5mm F2.0 APS-C Fisheye Lens Includes lens bag (see photo 17) Although the size is listed as Micro Four Thirds, the mount is L-mount. I used it with a LUMIX S1. I purchased it in July and used it twice in the summer and twice in the autumn. It's a really fun lens, but the photos don't match my style, so I'm selling it. In my amateur opinion, there are no scratches or stains. Please make your judgment based on the images. Please purchase only if you understand that this is a used optical product. Please refrain from purchasing if you are a perfectionist or particular about the packaging method. I will not be responsible for any shipping issues or problems with the product after it has been shipped. Please ask any questions before purchasing. Please purchase only if you understand the above.