EF-S 10-22mm w/ 50D shock.....

vfrstephen wrote in post #7842019
Yes i was blown away by the image quality of the 10-22 on a 50d compared with my 400d. Sharpness spot on my lense too.

maherie wrote in post #8069045
Yeah same here. Amazed at it's DOF. Pretty sure I'll be using as much as possible.

Randall n LV wrote in post #8072262
So will I be disappointed at the IQ on my 20d?

James.D wrote in post #8064590
Why doesn't the 10-22 get a better optical score on this review?

http://www.photozone.d​e …non_1022_3545_5​0d?start=2

hammmerhead wrote in post #8069004
I dont get a lot of Photozone reviews. The majority of the L zoom lenses tested only score 3 stars optically, not counting the 70-200. PZ seems to be under the wing of the third party guys....and who doesnt like an underdog.....
Check this out.

Photozone:
The Canon EF-S 10-22mm f/3.5-4.5 USM delivered a very sound performance with a combination of very decent build quality and very good if not impressive optical results. If anything vignetting at wide-open aperture could be better. The center performance is excellent throughout the range with generally good borders. The level of distortions is surprisingly low and CAs are quite well controlled.

Naturally it makes sense to compare the lens to a serious competitor like the Tokina AF 12-24mm f/4 AT-X Pro DX. All in all the resolution figures are very similar. The Canon has less CAs and a better contra light performance whereas the Tokina shows less vignetting. The build quality of the Tokina is also a little better (the Canon is more than "good enough" though) and finally the Tokina is substantially cheaper (420 EUR vs 670 EUR locally).
So which one to choose ? Well ... that's still up to you. Optical Quality:

The Tokina AF 11-16mm f/2.8 AT-X Pro DX is currently the best ultra-wide angle zoom lens for Canon EOS APS-C DSLRs. The resolution is impressively high throughout the zoom range (albeit a short one) and across the image field. Vignetting is really only a problem at 11mm @ f/2.8 but otherwise the issue is very well controlled. The level of distortions is comparatively low. Typical for most Tokina lenses it has one weakness: lateral CAs which are very high at all settings. The build quality is on a very high level and its a joy to handle the lens out there. All-in-all a very sound package especially when considering the quite affordable price (around 600EUR/US$).

Why didnt they mention the flare issue that so many mention on here?

GoneTomorrow wrote in post #8072531
From the site:

Photozone Rating System
Lens Reviews - Generic

Some of you folks may be a bit surprised by the "rather low" ratings in the verdicts here at photozone.de. This isn't really intentional but you're simply experiencing a cultural effect. Photozone.de is located in Germany and locally the word "average" means just that - reads: "average" is in between of better and worse. So this is strictly different compared to the more popular anglo-american-style meaning of the word where an "average" is equivalent to about as bad as it gets. Now you may argue that this is confusing but remember that this may be confusing for you but less so for visitors from different countries (thus different cultural backgrounds). We at photozone.de do firmly believe that "feel good" ratings are pointless - it neither helps you to choose nor does it help the manufacturers to get better.