This is really remarkable.
http://hyper-resolution.org/view.html?i=Rijksmuseum/SK-C-5/SK-C-5_VIS_20-um_2019-12-21
Not just because it’s a crazy detailed scan of a Rembrandt that gets you down to the cracks in the varnish, but because it works ridiculously well on a phone.
Go on. Keep tapping the image and just see how quickly you get down to near microscopic (more like a magnifying glass, but still) detail.