Portrait of a Gentleman by Joseph Wright

Joseph Wright painted this Portrait of a Gentleman around 1760, and the real subject is light itself.

Watch the right eye catch a pinpoint of white, while the left eye sinks into shadow. Wright built every face this way, a single off-axis candle or window shaping bone, flesh, and fabric. The lace at the throat becomes the brightest note in the whole picture, pulling your gaze down and then right back up to the eyes.

They called him 'Wright of Derby.' While his friend Joshua Reynolds chased classical grandeur, Wright painted close observation. He was part of the Lunar Society, a circle of inventors and natural philosophers, and he brought their way of seeing into his portraits. A face was a study in optics.

The painting lives in a private collection now, rarely seen. What single light source would you guess Wright used here?

Details

Now look at the light on his skin.
Now look at the light on his skin.
One side catches a small glint in the eye.
One side catches a small glint in the eye.
The other side dissolves into shadow.
The other side dissolves into shadow.
The tightly curled, powder-white wig is a precise social marker of class and era, immediately situating the sitter in Georgian Britain circa 1760.
The tightly curled, powder-white wig is a precise social marker of class and era, immediately situating the sitter in Georgian Britain circa 1760.
The heavily textured dark fabric dominates the lower picture plane; gold decorative buttons or frogging along the lapel signals military or court dress.
The heavily textured dark fabric dominates the lower picture plane; gold decorative buttons or frogging along the lapel signals military or court dress.
Transcript

A gentleman, 1760. As formal as a portrait gets. Now look at the light on his skin. One side catches a small glint in the eye. The other side dissolves into shadow. Joseph Wright was called 'Wright of Derby'. He lit his portraits like a scientist at work. Thin oil glazes over dark ground make light emerge out of nothing.