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  1. Pinhole

    A pinhole is a small hole, usually made by pressing a thin, pointed object such as a pin through an easily penetrated material such as a fabric or a very thin layer of metal. Similar holes made by other means are also often called pinholes. Pinholes may be intentionally made for various reasons. For example, in optics pinholes are used as apertures to select certain rays of light. This is used in pinhole cameras to form an image without the use of a lens. Pinholes on produce packaging have been used to control the atmosphere and relative humidity within the packaging. Wikipedia

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  2. en.wikipedia.org

    A home-made pinhole camera lens. A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side.Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect. The size of the images depends on the ...
  3. en.wikipedia.org

    Wide-field micrograph of a damaged 80 μm pinhole Natural pinholes formed by tree leaves - Solar eclipse of August 21, 2017 in Washington state. A pinhole is a small circular hole, as could be made with the point of a pin.In optics, pinholes with diameter between a few micrometers and a hundred micrometers are used as apertures in optical systems. . Pinholes are commonly used to spatially ...
  4. jongrepstad.com

    Oct 13, 2024Pinhole photography is lensless photography. A tiny hole replaces the lens. Light passes through the hole; an image is formed in the camera. Pinhole cameras are small or large, improvised or designed with great care. Cameras have been made of sea shells, many have been made of oatmeal boxes, coke cans or cookie containers, at least one has been ...
  5. digitalcameraworld.com

    Pinhole camera images are not sharp in the normal sense, but they do have a unique ethereal quality. (Image credit: N-Photo Magazine) Focal length is simply the distance between the aperture and the light sensitive material at the back of the box. While a pinhole camera image is never going to be perfect, its quality will improve the cleaner ...
  6. electronics.howstuffworks.com

    Jul 18, 2023This wood engraving of a portable camera obscura, aka pinhole camera, was published in 1877. ZU_09 / Getty Images. A pinhole camera, or a camera obscura device, is the simplest camera possible. It consists of a light-proof box, some sort of film and a pinhole. The pinhole is an extremely small hole like you would make with the tip of a pin in a piece of thick aluminum foil. Light enters ...
  7. testbook.com

    Nov 15, 2023A pinhole camera is a simple camera without a lens that works on the principle of rectilinear propagation of light. are often used as educational tools to teach about the principles of optics.They are also used by photographers to create unique and interesting effects. Pinhole cameras are known for their ability to produce images with a wide field of view and a very soft focus.
  8. opticsmag.com

    Mar 8, 2024Frequently Asked Questions (FAQs) Image Credit: Rawpixel. Who Invented the Pinhole Camera? Even though some sources say that the pinhole camera was first invented in the 5 th century BC by Mozi—who was a Mohist Philosopher at the time—an Arabian physicist, astronomer, and mathematician who went by the name Ibn Al-Haytham, has been credited as the first person to invent the dark chamber ...
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