hi all....well i was in a wedding and my little 28-135 suddenly stopped working right...when the lens is on 28 mm its not focusing and a repeat tak-tak-tak noize comes out.....to focus it needs time and patience as this noize keeps coming out from the lens....when my 580 EX is on my camera the lens doesnt pass the focal lenght information to the flash and in the ''auto zoom'' function the flash is stuck in 105 mm.....i tried 2 other lenses and everything works fine....anyone knows whats going on...? ?

