A high-resolution image of Rembrandt's Nightwatch [rijksmuseum.nl] is now online. 717 gigapixels (yes, giga) to a claimed resolution of .0005-millimeters.
Last week the Rijksmuseum in Amsterdam posted an AI-constructed, ultra-high-res image of “The Night Watch” by Rembrandt. The original piece is nearly 15 feet long and more than 12 feet high and has been under intensive restoration since the early 1900s.
-- https://www.popsci.com/science/rembrandt-night-watch-restoration-artificial-intelligence/ [popsci.com]
They've actually reconstructed some parts that had been destroyed over the ages, based on historical records.
Is a pixel size finer than the hairs on Rembrandt's brush enough detail for you?