@kemonine Yeah, I rarely have reason to use the digital zoom with that lens!
I used to figure if I needed to zoom past what the optics can do, I'd just crop it smaller. In most cases it's still better than screen resolution anyway. But I've found that digital zoom has one advantage over cropping after the fact: the camera bases any automatic settings like exposure on the actual image you intend to take, not the wider view.
But yeah, might as well turn it off the rest of the time.