The first picture of a pinhole camera
obscura is a drawn by?
A. Gemma Frisus' De Radio
B. Giambattista della Porta
C. David Brewster
D. Sir William Crookes
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Ans. A
Sol. The first picture of a pinhole
camera obscura is a drawing by an
astronomer Gemma Frisus' De Radio.
A pinhole camera or dark chamber is a
camera with a pinhole aperture and no
lens. Light passes through the hole; an
image is formed in the camera.
He used the pinhole in his darkened
room to study the solar eclipse of 1544.
A pinholelensless camera is a light-tight
box with a very fine round hole in one end
and film or photographic paper in the
other.
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