You mentioned the 650 big advantage over the 600d is its ability for action shots - sorry to query this but did you mean the 600 or 60d?
I really meant the 600D. The 650D has the same AF as the 60D. No difference there.
Between the 650 and 60 which will be better for action work or are they equally as capable from your reply I assume you are saying the 650 due to its a/f with moving subjects as you mention later but not as good as the 7d?
AF: 650D = 60D < 7D
I'm not sure I understand this as from what you said the advantages of the new hybrid are in live view and video but for normal a/f don't both have 11 points? so why would the 650 be better?
As to be seen above. The 650D just offers the hybrid AF additionally - and this one works in Live View and in the video mode only.
and how much of an advantage will the Digic 5 be over the 4 on the 60d?
Better JPG processing within the camera. If you shoot RAW you will hardly see a difference.
OK bear with me......now the 7d
Isn't the focusing difficult to set up for good results?
It is a bit more complex indeed but as you can see what AF points are chosen it's not too hard. With the other cameras you'd probably use either one AF point or all. Servo (follow the subject) or One Shot (once it's sharp focusing stops). You can do the same with the 7D and then there are more "fine tuning capabilities".
What does the forthcoming firmware upgrade offer?
In-camera RAW processing, RAW-buffer: 15 shots --> 25 shots, volume control in the video mode... yeah... should be the main points.
Is the lack of a swivel lcd screen an issue ?
Depends on what you are shooting. Some situations in which I missed it:
- Macro. If the subject is low a screen like that can come handy.
- I put the camer on a tripod and held it high above a crowd of people using a remote shutter release. With a swivel screen and live view it's easy to see what's oing on and how the result might look. A normal screen is just out of sight.
Is the body of the 7d substantially heavier/bigger than the 60d? (I've handled both the 600 and 60d and both felt fine in the hand)
Slightly bigger and noticably heavier. It's a metal body while the 60D has a lighter polycarbonate shell.
the 650 will do my action stuff - its got the latest processor lower high iso noise (or has it?) plus some other modes for novices like me - why should I buy either of the others?
Lower noise in JPG only. The RAW files are not really different. But yes: If I had to choose between the 650D and the 60D I'd probably go for the 650D (or wait for the 70D
), mainly because of the live view AF, the touch screen, which can speed up the handling, and last but not least the slightly lower price.
The 60D is pretty good as well. The main advantages of the 60D are the upper screen, the better battery and a slight weather sealing.