I bought a gently used Olympus OM-D EM-10 and have been trying it out before carrying it and a bunch of lenses to Ireland in a couple of weeks. I own Nikons (D800, D750, D700, D2x, and lots of film Nikons) but the weight has caused me to try out M43. I started with an Olympus EPL-1, then got a Panasonic G5, and now the OM-D. I own the Olympus 14-42 kit lens, the Olympus 40-150, a Panasonic 25mm 1.7 and a Sigma 60mm 2.8. My wife is a professional photographer and she also teaches sports photography. The class members were able to go to the National Baseball Congress world series on Monday and had free roam of the stadium. I tagged along with the OM-D EM-10 with the venerable Olympus 40-150mm lens. I got this picture of the hitter actually making contact with the ball and the bat is even bent from the impact. I was impressed.