This is a fantastic lens and I don't think it needs to be qualified with "price". If you know about the legendary Vedyra lenses, then you know that the guy behind this company was also part of Veydra. Fits my GH5 and BM4K. About as durable as any other MFT lens. One caveat: make sure it's the focal length you need. This equates to a full 100mm frame. Pretty long for most uses (although I use a lot of length).