This micro 4/3 lens is available on ebay and amazon. Sometimes you will see it with “Fotasy” printed on the lens, sometimes without. The MFT mount is built in. Measurements on my lens: 107 grams, 63mm wide at lens hood, 38mm long. It can be found on ebay and amazon for around $70.00. Below is a link to a photo of the lens on my GM5. Show us what your adapted lens looks like on your camera — Edit September 2016 - Here are lens profiles I use in Lightroom to de-fish my images. These are a modified version of some Rokinon 7.5 profiles. I discuss these in a later post in this thread. https://drive.google.com/open?id=0B8zQMOs6acYVVEpCZFFJOU5DZHM — end edit The photos below were shot RAW, with a fair amount of post processing. This is my second day with the lens, and it was raining yesterday. The first one is not cropped. It represents the full width and height this lens is capable of. The images de-fish well, I think. I could have dialed in some vertical correction below, but I like the look as is. Below is direct sunlight in a very mildly cropped image. In general I didn’t have a lot of problems with flare today. However, CA and fringing definitely exist - most images needed correcting for CA in Lightroom, and many needed fringing correction as well.