03-10-2015 01:47 PM
I recently have purchased a Canon 70D with 18-135 STM Lens Kit.
I have noticed that there is a faint repeating click like noise (like tik tak of wrist watch) when I turning Zoom ring.
turning the zoom ring when camera is off, there is not any noise like that.
I want to know whether it is a normal or there is something wrong with my new lens or camera.
03-11-2015 06:18 PM
My guess is you are hearing the aperture blades changing as you zoom. Try zooming the lens when it is removed from the camera. I bet you won't hear it then.