I was one of the first to own the Canon 5D MIII in Wisconsin on March 19 I drove to Mike Crevellos in Milwaukee, WI to pick up my new camera.  I shot several text shots comparing to the 5D MII.  I used a 25-105 f4 L lens on both cameras.  For the outdoor photos I shot in Landscape mode, ISO 100 and had identical settings on both cameras.  I was hoping to see a greater vibrancy in the blues and greens.  For the indoor photos I shot in increasingly high ISOs with f8 and increased the shutter to maintain a proper exposure.  I used a video light with white shoot through umbrella from Lowell Tota and set a custom white balance to 3200 Kelvin.  I shot all the photos in Large JPG with no editing except to composite the photos next to each other.  When I cropped the photos I cropped them exactly proportional.