100-400 II slight rattling noise?
I got the 100-400 II a couple of days ago and am very pleased with it so far.
One thing I noticed, though, is that if I softly shake the lens, I can feel a slight rattling inside the lens. My guess is that this might be normal and caused by the IS assembly.
Can anyone confirm that this is actually normal? Sorry for the OCD question, I might be a bit overly sensitive after spending a little fortune ...
Thanks in advance,