The pinhole camera
For taking his pictures the photographer Rob Slooten uses the simplest
photo camera existing: a pinhole camera. This kind of camera uses a
small circular hole instead of a lens to produce the image.
The lens of a photo camera converges the light towards one point, and
therefore a lens is capable of producing sharp pictures. The light that
passes a hole however, continues straight forward, and as a result the
image formed will be slightly blurred. Furthermore, objects at a short
or long distance from the hole are depicted with exactly the same blurry
character; a hole looks at the world around us in a completely different
way compared to the camera lens or our own eye.
A special characteristic of an image generated by a hole, is the concentration
of beautiful, transparent light in the centre. Combined with the darker
parts at the edges this sometimes gives rise to a mysterious clair-obscure.
Only a small amount of light will pass such a tiny hole. This is the
reason why the exposure time for the photos can sometimes amount to
a few minutes. The long exposure times cause images of trees and clouds
moving in the wind, or turning wings of a mill to fade away in an unpredictable
way.
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