Question

write big definition of pin hole camera​

Answer 1

A pinhole camera is a camera without a conventional glass lens. An extremely small hole in a thin material can create an image when all light rays from a scene go through a single point. In order to produce a reasonably clear image, the aperture has to be about 1/100th the distance to the screen, or less.

Answer 2

Answer:

A pinhole camera is a simple camera without a lens but with a tiny aperture, a pinhole camera effectively a light'proof box with a small hole in one side . Light from the scene passes through the aperture and projects an inverted image on the opposite side of box , which is known as the camera obscura effect .