I need assistance asap!

[clemmb]

Not to be rude Mark, but

Not a problem. I am the king of looking at how sharp a lens is in the center and overlooking the corners. Next September I will be going to Alaska and wanted my 1DmkIIn for the speed of AF and frame rate for any wildlife I see but also need to be able to shoot some landscapes. My 24 just is not wide enough for landscapes on this body so I purchased the 17-40. Most of the time I am shooting this wide it is for landscape and I usually vignette them in post so the corners are general not a problem for me. I decided to do some simple testing today anyway. Here are the results:

5D @ 17mm f4.0

5D17F4 by clemmb60, on Flickr

5D @ 17mm f8.0

5D17F8 by clemmb60, on Flickr

1DmkIIn @ 17mm f4.0

1D17F4 by clemmb60, on Flickr

1DmkIIn @ 17mm f8.0

1D17F8 by clemmb60, on Flickr

I also have similar images @ 40mm on my flicker page. I loaded full file to my flicker but can only view 1024 x 683? When I look at others on flicker I can view full size. I do not know what I am doing wrong.

Enjoy

[Sheiky]

Thanks Mark! It seems that the 1D makes up for the extreme corners so that's nice!
I also took a look in my archive. When I tested the 17-40 I tested it against the Sigma 12-24. Which is clearly a lot better in the extreme corners(12mm) than the Canon on it's widest. At that time I had no lens correction profile and I applied it yesterday and it seems to do a very good job on the 17-40. I still don't like the extreme corners, but to be fair you'd only notice if there was any interesting detail in the corners and you'd be looking at 100% or a large print. Nothing to worry about I guess "Horrible" was kind of out of line. In normal use you probably wouldn't notice it.
As for the full resolution view on Flickr. I'm a Pro member and I can see all sizes(my photos) and you might also be able to view my photos in all sizes, but I cannot see yours so you're probably not a pro-member? Could that be?

[clemmb]

you're probably not a pro-member? Could that be?

I thought that may be the case but was not sure. I am just going the free route for now.
Thanks