70-200 F4 IS noise
Apologies if this is a noob question but I just got my new 70-200 F4 IS and I noticed that the IS produces a continuous humming noise when I half-press the shutter.
Is it meant to work this way? I had expected the humming to stop once the image stabilises.
|Short-eared Owl by bryand7k|
from Best photo of the week...
|Happy girl! by Dutch Newchurch|
from Wide angle