Sold my 24-105mm to fund (a small part of) the purchase of the 24-70 f/2.8L II. Never looked back.
According to The Digital Picture:
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=0&API=0&LensComp=355&CameraComp=0&FLIComp=0&APIComp=0
....the 24-70 f/2.8L II @2.8 is quite better than the 24-105mm @ f/4 in all matching zoom ranges except 80mm, 90mm, &105mm! LOL...but one pays dearly for it, so as usual ...everything in photography is a compromise.....
According to The Digital Picture:
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=0&API=0&LensComp=355&CameraComp=0&FLIComp=0&APIComp=0
....the 24-70 f/2.8L II @2.8 is quite better than the 24-105mm @ f/4 in all matching zoom ranges except 80mm, 90mm, &105mm! LOL...but one pays dearly for it, so as usual ...everything in photography is a compromise.....
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