• UPDATE



    The forum will be moving to a new domain in the near future (canonrumorsforum.com). I have turned off "read-only", but I will only leave the two forum nodes you see active for the time being.

    I don't know at this time how quickly the change will happen, but that will move at a good pace I am sure.

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These two lenses should look exactly the same:
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=4&API=0&LensComp=787&CameraComp=453&SampleComp=1&FLIComp=4&APIComp=0

At the short end one is better, at the long end the other. But why? They should both look best for all focal lengths and never have passed the quality control.

Maybe the optical design has such low tolerances that Canon can't make it work properly and this was the reason for the long delays.