That reference sites doesn`t have their "laboratory" tests available yet. Maybe you consider this ones worth a read: In spanish, with sample photos. Looks realistic. Go straight to Mat`s comments. Mansurovs dot com review, amongst others compared to the 24-70 and 70-200VRII. Link is blocked. Jonathan Fleming`s blog, links to photos taken with this lens (wedding, NY) Todd Owyoung`s site, with a few more pics and impressions. Compromises, compromises... well, it looks to be a reasonable 24-85AFS replacement.