Canon often do this kind of thing so that their products are fully tested by trusted professionals and they get the feed back their development engineers need. If they don't do this 1D4 fiascos are likely to occurr. While this kind of leak plays to our emotions, it is necessary for the developement of better camera models. But it is also kind of cool, becuase we get to hear very loose by telling information about prototypes which are currently in devleopment. We know (via other rumours) that Canon have a sensor patent / design which uses a different arrangement of the traditional bayer RGB array. It's likely that this new sensor is a test bed for that particular patent / technology and it appears to be an improvement over the current tech.
Bare in mind that the 5DIII resolves nearly as much detail as the D800. It's only the top end optical resolution of a few of the worlds sharpest lenses which can allow the D800 to out resolve the 5DIII and even then, there isn't much between them. Amusingly, Canon have more lenses in that bracket, than Nikon currently do...Canon's new 24-70IIL is the sharpest zoom lens so far from any brand. When Canon finally releases a camera body with this kind of MP count, there will be a lot of lenses to match the sensor's capabilies, where as Nikon have very few lenses which can match their current sensor tech. Most of their lenses do not optically resolve much over 22mp.
I think this new camera's sensor point to a more efficient use of the RGB array and probably the removal of the AA filter to create sharper and clearer details with the same resolution of 22mp. If this is the case, the new camera could easily match the D800's sharpness and detail but at a more effficient 22mp. the improvement in colour rendition sound good and i only hope that Canon have employed a simular supporting sensor design to achieve the same (if not better) shadow noise pushability in their raw files. This isn't an expanded DR as some have claimed, it's purely a better control of iso noise in the shadow areas of a raw file. Where as Canon files tend to break up and display banding with the same level of pushing in the shadows.
one could argue that the scene was incorrectly exposed in the first place...but the fact remains, Nikon / Sony currently have a 1.5 stop advantage in this single feature on their sensors. All the other features are a lot closer than the marketing / spin doctors would let you belive.
hi, i have owned a multiple every professional canon camera since the 1ds mk1, and at the moment i own 5dmk3's.
i brought a sony a7r to test a few weeks ago and was absolutely blown away by the detail and the latitude of the sony file. it clearly blows away the canon in detail with exactly the same lenses (i have been using the metabone adaptor I've shot exactly the same thing with two cameras and there just is no comparison.
i have no idea how you can say there are similar! have you got both cameras?
I was so impressed with the file from the sony- but very disappointed with the evf and usability of the sony. so i brought a d800 and lenses. the d800 appears virtually identical file wise to the sony, and i am very happy with it.
i am reluctantly holding on to my canon gear waiting for photokina. but canon has to improve their files with both megapixels and file depth, or i will be changing completely to nikon for the first time in 15years. the 5dmk3 files have disappointed me over and over again.
almost everyone i know who shoots in my field (advertising photography) have seriously considered or already moved to nikon.