Camera obscura A pinhole camera is a camera without a lens. Instead of a lens, a small pinhole is used. Focusing, such as with a lens is not possible. The camera has no viewer so you can't exactly tell what you are photographing. It’s based on the use of a viewfinder and some experience. The sharpness depends on the size of the hole and the distance between the hole and the film. Generally, the smaller the hole is the sharper the image, until diffraction comes into play and causes an even more blurry image. The image is everywhere equally (un)sharp, so the depth is infinite. Besides vignetting there's no optical distortion at the edges of the image as usual with wide angle lenses. The recordings on this site have an angle of 123.8 degrees, comparable to 12 mm wide angle, but without distortion.
1988 - My first 4x5 inch pinhole camera Zero 612B - Teak; panoramic camera
120 rollfilm in 6x4, 5 - 6x6 - 6x9 and 6x12 cm Robert Rigby Standard 5x4 inch pinhole camera (f 166 - 65 mm) Zero 45 - Teakwood; 4x5 inch camera
sheet film or Polaroid
25 mm, 50 mm and 75 mm
Pinhole Camera Through the small hole of 0.25 mm passes very little light. Exposure times of several minutes are mostly usual. In 1988 I experimented with homemade pinhole cameras. Currently I've some wooden teak cameras. From left to right: The homemade camera from 1988, the Zero 612B for panorama shots, a Robert Rigby 4x5 inch and the three separate elements of the Zero 45, also suitable for 4x5 inch sheet film or 550 Polaroid cassette. © 2014