The 7D has good autofocus for action photography but Canon seem content on a somewhat lesser autofocus system on the 5D mk2.
Just to re-establish a quid pro quo - but last I checked we do not know that Canon was content with anything. And I doubt that upon the release of the 5Dmk2 that they decided to hold back the AF system and the 8fps on the 5Dmk2 and then charge us 2000 dollars more than the 7D
Fact: both cameras are separated by 11 months and 13 days of time
Fact: in 2008, dual Digic 4 processers were not in production - therefore the fps was as high as Canon was comfortable with using a 21MP FULL FRAME sensor.
Fact: the 5Dmk2 was improved to Digic 4 FROM Digic 2.
Its not like Canon was holding anything back, it seems that from some of the announcements and the reviews of 2008, 5Dmk2 was something that pushed the boundaries of what Canon could do at the time. I dont think they were content, they were pushing the limits.
As for the auto focus being dissapointing, well sure it is, but its not like Canon has the Nikon auto focus boffins making their AF system - Its like saying that Canon glass is dissapointing because Olympus has always made excellent lenses for cheaper and that Canon cant keep up with them and that Canon is holding back with their kit lenses since the same twin lens kit for the 60D is still avaliable with the 1100D, its still an unfair comparison. One year is a LONG time between cameras I recently learned. It wasnt long ago that I thought a 3 point auto focus system was a huge leap then 6 months later my local store was talking about the new 9AF from canon and the 51 from Nikon.
It is interesting that Canon seems to be increasing the difference between their cameras for portrait/landscape cameras and action cameras but is intent on giving us video features.
I dissagree - Canon for a good 10 years made the BEST damn Digital Video cameras for the Semi Pro - for years I worked with the XL1 and the XL2 and they had the market STILL for video cameras. If Canon can implement video into a DSLR without compramising still image quality, why not? And last I checked:
Fact: Nikon released video on a DSLR FIRST with the D90
Canon has been playing catch up with Nikon for a while but the 5Dmk2 represented Canon willing to spend money to get the first FF camera over 20MP and they got it right too - and when I was working in sales, the Canon rep told me that in Japan, the first 5Dmk2 COST Canon more than the asking price because they were trying to push the limits.
The Canon AF system at the time of 2008 was the BEST THEY HAD at the time. Sure you cant compare it to the D300 or the D700, but I dont think you can expect Canon to say, woops, 21MP is too much for our processor to handle so only studio photographers should buy it.
Thats just being unfair to them - its like demanding Canon should put the AF system from the 7D into the 5D when at the time it was probably an unfinished, untested and probably non-existant technology - and when they say, we cant, the reply I am getting from your post is "But it exists in a camera that you released a year later, and Nikon has 51 and you are cheating us sports photographers."
I remember using a 5Dmk2 for sport and yes I would have liked a 1D or the 50D at the time of release for the better FPS, but really now, 50D shifts 10MP and the 5Dmk2 shfits more than double that, and the FPS difference? Relative! 5fps vs 3.9fps, thats MORE than half for DOUBLE the resolution for the SAME processor.
So how does the 1D shoot faster and have a better AF? It costs more... thats why.... So why are people suprised that the 7D fills that need for the crop market? If you want FF why not a 1D? I for one am glad that the 1D is so expensive so I CAN afford the 7D.
Sorry for the rant but I LOVE my 7D and I used 5Dmk2 in uni and at school to teach the kids there but its not by any means a downgrade or a upgrade, it fills the need to have high FPS and nice AF for someone who cant afford the 1D or 5D. Never have I heard of a company tell its customers, "if you shoot portrait, get a 5Dmk2, we made it for you. If you want to shoot high speed, buy another camera." To assume a camera company is doing this, Im surpised why so many 5Dmk2's show up in the Tennis and in the F1 next to 1D's etc.
1) Olympus OM1 [Zuiko Auto-S 50mm f/1.8]
2) Pentax MZ-60 [Sigma 28-90 & 100-300]
3) Canon 7D [EF-S 15-85 & 70-200mm f/4 IS & 50mm f1.4]Leo's Flickr Page