hi guys...im planning to buy a telephoto lens for sports, festival(street dancing), concerts and bike race(or other)...im not a pro photographer but a serious hobbyist..
my choices are:
sigma 70-200 ex dg apo hsm II
nikon 80-200 AFD (2 ring)
my camera body is nikon D90...i can't afford the nikon 70-200 vr2.:)
my concern to the sigma lens are the negative issues and reviews like front/back focusing problems, sometimes AF stuck, peeling of the lens skin and the image quality.. well, there's no question about the build and the image quality of the nikon, my only concern is the AF speed of the lens in my D90..
any comments and suggestions?