This Canon TV-16 50mm f1.4 lens is designed for C mount, which would normally mean that you'd be lucky to cover Micro Four Thirds. But this dang thing covers APS-C with hardly an argument, and not only that, the image quality is just lovely. Yes, there's some barrel distortion. Yes, it's not the sharpest lens in the world. Fringing? Yes. You know what, though? Pictures still look great. In excellent condition, with only minor wear; focusing is smooth, and glass is clean. A rare lens in very nice shape.