Wollaston landscape lens
Encyclopedia
The Wollaston landscape lens, named for William Hyde Wollaston
William Hyde Wollaston
William Hyde Wollaston FRS was an English chemist and physicist who is famous for discovering two chemical elements and for developing a way to process platinum ore.-Biography:...

, was a meniscus lens with a small aperture stop in front of it, providing some improvement of aberrations. It was devised in 1812. It was the first reasonably sharp over a wide field (about 50° at f/16) lens. Wollaston fitted it to an artist's aid camera obscura
Camera obscura
The camera obscura is an optical device that projects an image of its surroundings on a screen. It is used in drawing and for entertainment, and was one of the inventions that led to photography. The device consists of a box or room with a hole in one side...

in 1812.
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