Yeah, the 24-70 was on my wish list for several months, and was convinced of buying a copy. Then I learned about the crop body and useful ranges, and learned the 17-50 is fairly equivalent to the 24-70 on a full frame. I was told over and over from experience photograpers that 24-70 isn't the right choice for a crop body. Well, I listened to the advice, and am glad I did. The 17-50mm range is great, choice, and it didn't kill the bank.