iPhone 7 Plus - Purple noise while using telephoto lens
Hi,
I own a iPhone 7 Plus Matte Black, and I've noticed the telephoto lens doesn't work properly when used. When I switch to the telephoto lens, I get purple noise, especially in low-light conditions (see the images). The brighter the picture, the more it fades away but it still is present. I have updated to the latest iOS 10.1. When I use the new portrait mode, the problem is almost always present (yes, I know it's still in beta) but sometimes I also get this while using the normal lens.
Are more people having this problem? Is this a defect and would a visit to the Apple Store help?
Thank you in advance!
iPhone 7 Plus, iOS 10.1