If I where you, I would go for the 10-22, then you have no guilt for overlapping focal lengths. As soon as you start shooting wide angle, you will wonder why you didn't do it years ago.
Peter, I also will have the 5D mk2.
But I dont know how used full the extra 7mm will be.
Trying to weight up wether I would use it enough to justify the £500
Now you tell us about a full frame body!
Do you take a few paces back to obtain the shot?
Can you take a few paces back?
Do you lose a shot because you cant take a few paces back?
That is an option, but I always feel that the "feel" of the pictures is difinitely different when you are "in close" with an ultra wide angle lens.
This lens seems sooo good - think it will be my next purchase. Must be good you don't see too many going 2nd hand
Now you tell us about a full frame body!
Like more distortion?
?80% the amount of the environment that is included in the shot compared to a lens with a narrower view taken from further back
the OP has both plus i guess people buy ready for FFI can't see why people go for the 17-40mm f4 for a crop body. There are very good 17-50mm f2.8's giving a greater zoom range and a wider aperture.
To me the 17-40mm only makes sense on full frame.
Ah! You have FF too!
Which is?I liked this lens on a 1.6 crop, then I discovered FF and I understood what the lens was really about.
tikkathreebarrel Which is?
. Otherwise man, it's like really heavy man, far out LOL

Taken today on a FF body (1Ds MKIII)
17-40 F4L 1.6 sec @ f22 ISO100
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That's an understatement!!!![]()
Normally I don't bother with HDR etc... Saturday I fancied going wild :nuts: