The night we yamcha at starbucks and shooting yoshi and mario, all of sudden my lens just stopped focus, anywhere I aim it just can’t focus. Hearing from expert the problem might be the lens so after I went back home and try on off the camera, recharge the battery, change memory card, take out and put back the lens again and everything I try to make the auto focus work again but it just stopped. Worst come to worst when I try to fix my camera auto focus, accidentally the camera focusing screen is scratched by xxx and the focusing screen red light is stop working. Fnck man, then I ask the god – google and found the problem and notice my lens is jammed. I think the camera lens just stopped halfway and I have to pull out the lens then only can auto focus again. Feel depress, why can’t I just notice the problem early and my camera just dead without hitting anything and screwed up the auto focusing screen. Now my camera is sent back to canon shop and I don’t have camera with me for three weeks. KCUF!