Loud focusing on Sigma 30mm f/1.4?

[robmiller]

I've just bought a 30mm f/1.4 and, while I'm impressed with it generally, it seems to focus rather loud (compared to an AF-S lens, anyway). I was under the impression that HSM lenses were relatively similar in focus volume to AF-S ones? This one is... I dunno, a little squeaky, although it's not anything ridiculously loud.

Is this just something to be expected, or should I see about getting it repaired/replaced?

 

[alexisonfire]

AF-S / HSM is designed to be near silent. I would get it replaced if your not happy with it mate

 

[robmiller]

Think I'm going to. Gutting, I want to play with it