education archive | 20 i 27.9.15

pinhole photography — learn how to build your own pinhole camera

Pinhole photography — a photography technique using a pinhole camera, also known as camera obscura (from Latin: a darkened chamber) — a simple optical device, the prototype of the photographic camera.

This ingenious device consists of a box with a small hole in one side (0,3—1mm in diameter depending on the camera size) which functions as a lens. The inside of the box needs to be painted black, to reduce light reflections. There is also a ground glass (focusing) screen or tracing paper fixed to the wall opposite the hole. Light rays pass through the hole, creating an inverted and scaled down image on the screen, to which a negative film can be attached to take a photograph. A photo taken using a pinhole camera is characterised by gentle contrast, distinctive 'softness' and fuzziness, infinite depth of field and a total lack of distortion in the image. Owing to these features camera obscura even today continues to be used in artistic photography.

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