Conclusion: I bought my EOS 5d mark iii because my wife has a 6d and I was jealous ! I love the really nice ergonomics. All the buttons and commands are very naturally situated on the body. And I really love the silent mode. I mean the silent mode is just extraordinary. It is a real satisfaction to take a picture and nobody can hear you. About image quality I find the amount of detail and crispness beautiful and the colours are gorgeous. Warm yet very natural.
Excerpt: Being the owner of a 5D the mkIII for well over a year, I have fired 27,000 frames with it. It works pretty well in connection with my corporate bespoke photo library work (all of which is on client locations), being a significant improvement over the mkII. I have no gripes with the battery pack extension, the resultant heavy combo being pretty easy to use.I am not an equipment geek. I just like my job taking photographs.
Pros: Easy To Use, Fast / Accurate Auto-Focus, Large Clear LCD
Excerpt: I just upraded from the 70D. I do miss the touch screen and WiFi that the 70d had but I love the low light abilities of this camera. I can shoot at ISO 6400 and get a very clean picture. The joystick for choosing focus points is great. The focus system works great, fast and accurate. Color rendition is fantastic. The only downside to this camera as well as every other Canon is that the dynamic range is low.
Excerpt: This camera produces really beautiful stills and video. Great color, sharp, etc. Great for features, portraits and sit down interviews. Only issue is that frames per second really isn't enough for sports or anything moving fast. Also, not a "grab and go" video camera. You have to manually focus (like the old days) when shooting video.
Pros: Good Image Quality, Good Image Stabilization, High ISO Performance
Excerpt: The Mark III is a really fine full frame camera delivering picture quality unmatched by cameras with smaller sensors. However, it is not perfect by any means. The autofocus is good but not as amazing as marketing would have you believe. The lack of built in flash is justified by "most pros use a speedlite anyway" but this isn't technically a pro body...
Excerpt: Love the options, nice to have HDR and multiple exposures built-into the camera. AF is fast and accurate. On the downside, it's quite heavy to carry around especially if you add a medium/large lens. Also, I miss the articulated screen I had in the 60D. So far, I'm enjoy the functionality and amazing technology.
Pros: Fast / Accurate Auto-Focus, Fast Shutter Speed, High ISO Performance