My 16-85 VR is doing some weird noise during focus, manual or auto. It's like an hiss. I asked in a local shop and they said it can be some microdust inside the lens. But I'm a little worried it can be the beginning of a bigger problem. The lens is no more in warranty so, what can I do? What do you think guys?
I'll attach a video so you can listen to the noise. Sorry for the crappy quality. http://it.tinypic.com/player.php?v=2q0nj9c&s=8