We took the Olympus OM-D E-M5 II out with enthusiastic Roller Derby photographer James McDaniel to see how the new camera performs as we got to grips with one of the most difficult sports to photograph... This is a DPReview production made possible with the support of Olympus and Amazon. For more: dpreview.com/sponsored DPReview.com is the world's biggest digital camera review website. Welcome to our YouTube channel! Subscribe for new feature videos, reviews, interviews and more. Discover the world's most in-depth digital camera reviews at http://www.dpreview.com/