Pinhole Camera: a simple camera without a lens and with a single small aperture, a pinhole.
Sharp inverted (upside down) image produced by a small pinhole.
Bigger image produced when camera is closer to the object.
Blurred image produced by large pinhole.
Optimal pinhole diameter: d = √(λD)
λ = wavelength of visible light
Sharp inverted (upside down) image produced by a small pinhole.
Bigger image produced when camera is closer to the object.
Blurred image produced by large pinhole.
Optimal pinhole diameter: d = √(λD)
λ = wavelength of visible light
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