Yes, I own one and have shot perhaps millions of frames with it over the past 20 years or so. It's an amazing lens. That said, it's also a MONSTER of a lens -- even more so mounted on a diminutive body such as the E-M10! I've been shooting a lot with the Nikkor 85 f/1.8 AF (which is an internal focusing design) on an EM-1 and am LOVING it. Good luck!