Alski said:LetTheRightLensIn said:Alski said:Hopefully the one saving specification the Canon could have at this point might ironically be the 11 point AF system... wait, I know what your thinking, hear me out...
From what we've seen of both Nikon's and Sony's offerings, they're using AF modules borrowed from their APS-C cameras, meaning they occupy a tiny little fraction of the frame, all clustered into the centre. Aside from subject tracking, which these cameras are not made for, and which the Sony will (based on specs alone) probably only marginally excel at, having all the AF points in the centre is a nightmare for all sorts of photographers who would like this as a secondary body, and for those people as basic as an 11 point AF seems, its better than a "19+109 point" that covers a fraction of the frame.
Here's hoping that Canon manage to bring out the only entry level FF with FF AF.
AF systems are basically the same size for APS_C or APS-H or FF so not sure what you mean buy that....
mmm.... are you sure? I was very much under the impression that AF area was linked to prism size which is linked to sensor size.
Look at the AF area coverage of the D600 here : http://forums.dpreview.com/forums/read.asp?forum=1021&message=42484333
And the Sony A99 here: http://4.static.img-dpreview.com/previews/sony-alpha-slt-a99/images/screens/AF-Range.jpg?v=1581
Both, but particularly the Sony are tiny compared to the frame coverage of any of the 5D's.
look inside a 5D2 and then look inside a 50D and you'll see the AF sensor is basically the same size, the AF sub mirror is way smaller than the main mirror on the 5D2 and only moderately smaller than the main mirror on the 50D. They are limited by the angle they can collect light from the 35mm mount lens and still work well. Also notice how the APS-C AF points tend to appear much, much closer to the edges than they do on the 5D2, because it's basically the same size AF system so it covers more of the APS-C sensor than the FF sensor area.
Maybe it is 11 cross type and 1 super precision type and 6 central assists or even 3 pairs of 6 assists???
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