I had an opportunity yesterday to photograph corporate headshots and decided to put the E-M5 to the test in a professional setting. Coincidentally, on the way to the session, I met with a local photographer to sell my Canon 5Dmk II. Since I no longer do a lot of professional photography, I decided to sell off my Canon gear. The E-M5 performed admirably. I set it to manual, and shot at iso 200, 1/200 @ f/9 with the 45mm lens. Not one of the 7 people I shot said a thing about the camera not looking professional. I showed everyone what their images looked like on the screen and I even let a couple of people hold the camera. Not one comment about the camera size! This image is straight out of the camera, converted from RAW in ACR and cropped and watermarked in PS. I'll do some cleanup in PS after the client provides their selections. So, after my first professional job with the E-M5, I have no regrets about selling my Canon gear.