Is known to have used a camera obscura to study the subject of his ? in great detail.

Well the artist David Hockney believed that Johannes Vermer and other used these devices such as the camera obscura to help them achieve their perceptive in achievement

photography had emerged as an elite art pursued by a few creative individuals for a few wealthy patrons. but now, said bauldelaire, it was succumbing to "the great industrial madness of our times." it was becoming a mass production industry that catered to middle-class tastes, including a taste for gadgetry. the stereoscope, the first 3d imaging system, had turned looking at photographs into parlor entertainment. a "thousand hungry eyes were bending over the peepholes of the stereoscope as though they were the attic-windows of the infinite.