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Johannes Vermeer - Het melkmeisje | Oil on canvas | 1657–1658 (though estimates differ)
(discuss.tchncs.de)
Wander the gallery. Look at the art. Be polite. If you feel able please post some great art :)
What I find fascinating is the details - the holes in the wall where the used to be hooks. It makes it feel more real. A view into the way people loved back then.
Those details are why they think he used mechanical means to aid his painting. They’ve seen chromatic aberrations and curved objects that should be straight which clued them into his use of optics.
The documentary was Tim’s Vermeer if you want to watch it.