Nikon has Canon beat here, because Nikon's Gen II cameras automatically correct this and make them a thing of the past, while Canon's cameras, at least up through 2009 as I write this, still can't correct it, and show whatever the lens has in all its gory detail. And if you don’t have these programs available: because the distortion between 28 mm and 200 mm is so constant, you can apply the same correction across the entire zoom range.

When used on a Canon 1.6x camera, it gives angles-of-view similar to what a 29-320mm lens does when used on a film or full-frame camera.At 80mm, the good sharpness in the centre is maintained at maximum aperture, with sharpness towards the edges dropping to fair levels. Peak quality across the frame is again achieved between f/8 and f/11 for this focal length, where sharpness across the frame is very good.

When using short focal length range zoom lenses, the widest and longest focal lengths are often utilized the most.

Three years after Nikon's 18-200mm VR, Canon finally has a do-everything lens for its 1.6x consumer DSLRs. With all respect to Canon, Canon has had the world's first 28-135mm IS lens for film and full-frame cameras since the 1990s, for which Nikon had no equivalent until Nikon's crummy 24-120mm VR of 2003.