Nikon D610 Horizontal Noise Line
I'm noticing a strange noise line in some of my pictures, it's occurring like in one in every thousand photos. I can't reproduce it with a specific setting setup, scene, or lighting, It's like this happens randomly. Do you know what could be doing this?
There is two pictures to exemplify, they have the same exactly settings: 1/60 sec, f/2.8, 1600 ISO, 24-70mm Sigma lens, with exposure set +3.00 in Lightroom:
There's a 100% crop: