A pinhole camera is a camera that has no lens, but instead,contains a small, pinhole sized aperture. This idea was introduced by an Arabic scientist, Ibn al-Haytham in 1,000 AD. He described the “camera obscura” effect caused by the pin-sized hole in a camera. The first known use of the camera obscura (pinhole camera) was in 1544, by an astronomer named Gemma Frisius in a dark room. This continued to be experimented with in the 1800s by inventors such as David Brewstesr, William Crookes, Thomas Edison, etc. The small aperture of the pinhole camera is often used for solargraphy. To track the movement of the sun, or to safely capture an image of a solar eclipse. One caveat about the pinhole camera, is that it often captures images upside down, and can vary in clarity. However, one benefit is that since there is no lens, there is no need for focusing the image, and there are no visual side effects such as color distortion or noise in the picture.
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