Strange sound from my Tamron 70-300mm lens
I just got the Tamron SP 70-300mm F4-5.6 Di VC USD lens and I noticed that it makes a strange sound when it is struggeling to get something in focus. It is kind of like a "heavy" clicking noise.
Is this normal?
I uploaded a short audio clip here (recorded with iphone): mediafire (dot) com/?v7jqvaxle3o1ja3
(You probably have to turn up your volume).