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  1. The Lensless Pinhole Body Cap for Canon EF and Nikon F mount cameras is simply a camera body cap with the center drilled out. Filling the hole is a 0.005"-thick brass plate with a tiny 0.01" pinhole drilled in its center. The Lensless Pinhole Body cap gives an approximate 50mm field of view and an f/200 aperture.

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    • How Can I Make A Simple Camera Obscura?
    • How Can I Make A Brighter and Sharper Image Than I Get with A Pinhole Camera?
    • Can I Expect to View Astronomical Objects Through The Camera Obscura?
    • Is It Possible to Build A Non-Motorized Instrument?

    Such a basic device is often called a pinhole camera. It is made by cutting a ½ inch hole in one end of a light-tight cardboard box and placing a white paper viewing screen on the opposite side of the box. The imaging pinhole is made in a small piece of aluminum foil that is taped in place over the ½ inch hole. The pinhole is made in the foil with ...

    A better image is made by replacing the pinhole with a lens whose focal length is equal to the distance from the lens to the viewing screen. The diameter of the lens might be ½ to 1 inch for a focal length of 10 inches. In a basic instrument this can be a simple lens made of one lens element. Such lenses are available from the Edmund Optics Company...

    Most camera obscuras are arranged to view the surrounding landscape of buildings, mountains, a coastline or a harbor scene. These views occasionally will include a sunset or moonrise and indeed, such a scene can be especially dramatic. Observers must use great care in looking toward the sun, as even a reddened sun near the horizon can easily cause ...

    It is possible to build a camera obscura that is operated manually. Such an instrument might appeal to users in remote locations or observers who desire a portable or movable instrument. The cost of a manually operated unit is not necessarily less than a motorized version, and using the manual unit could be cumbersome. Typically, one or two rods ha...

  2. Oct 6, 2021 · Lensbaby has gone back to the earliest forms of photography with its latest artistic lens series. The Obscura 50 ($279.95) is one of a pair of pinhole optics, and can swap between traditional ...

    • Lead Analyst, Cameras
    • Lensbaby
    • 1.8 by 1.9 inches
  3. Mar 27, 2022 · Since its invention, photography has utilized the simple physical properties of the camera obscura effect. A pinhole camera —simply a box or camera body with a very small hole as a lens—is the perfect way to pare photography down to these essentials. Pinhole cameras can produce images with dramatic vignettes, motion blurs, and gently warped ...

  4. Dec 6, 2023 · The formula is: focal length = (pinhole diameter / 0.03679)2. The focal length is the distance that the pinhole should be from the film. Example using 0.3mm pinhole: focal length = (0.3mm / 0.03679) 2. focal length = (8.17438) 2. focal length = 66.49mm. The next value you need to calculate is the view angle of the pinhole.

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  5. Apr 29, 2024 · The optimal pinhole size is the diameter that allows for the sharpest possible image. It balances the diffraction of light (which spreads light rays out and blurs the image) with geometric sharpness. This optimal size can be calculated using a straightforward formula derived from physics principles. Below a popular formula, standard sizes ...

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  7. 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.

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