I spent 3 hours on the back roads taking photos of fall colors and switched between three lenses during the shooting. Later Im finding that the Tokina is the least sharp of all, actually looking like the picture(s) are soft especially when taking broad landscape shots. I have used it for some portraits and the images come out ok because of the close distance to the subject. So Im very disapointed in this lens and am going to sell it and just save up for some better glass. Im using a Nikon D90 and my funds are limited and the D90 at my income level is an investment but I do see the need for Nikkor lenses. My 50mm Nikkor f1.8 is incredible. So any suggestions or similar experiences?