Rembrandt - a case study in light and dark

Google Art and Culture is currently displaying a very interesting case study in the portrayal of light and dark in a painting by Rembrandt.

A Case Study of Light and Dark is a slideshow which highlights - in detail and close up - how Rembrandt conveys both light and dark

• in different places within a portrait 
• relative to the light source and 
• relative to the form and local colour of the subject.

Do take a look - I know some with find it VERY educational. For others it's an excellent refresher of what we already know but maybe sometimes forget!

The painting is a Bust of an old man with turban (1627 - 1628) by Rembrandt Harmenszoon van Rijn from The Kremer Collection

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PS You may have noticed I'm posting shorter posts borrowing from other sites. That's because it's Christmas and I have other "things to do"! :)  Future posts will be similar and/or will display paintings of the season or Christmas.