I am very impress with Canon's 5Dm3... This is a long time upgrade I have been waiting for. I took this first shot in tungsten lighting only one source. ISO is crazy, it was at 12800 f2.8 with an SS 1/160... Ran noiseware and sharpen for web and this is the resulting picture. I used my 16-35mm. It is sharp as a tack and focus is right on. There is a learning curve with the camera, as with all new camera. But I am just amazed with the quality. Thought, I'd share.