I've recently brought a brand new canon lens from a website and when I record videos and use the zoom, you can really hear it during playback? Is this normal? Here's a link to a video I've recorded: https://twitter.com/elllisn/status/850318225531383808
Please help as I don't know if I should send the lens back or not? Or is it because the lens is new so it's still slightly stiff?