In the early sixties Larry Shaw and his partner in crime Brad Wright put together some pinhole cameras. The picture above is of Brad Wright and a telescope pinhole camera that was made during an eclipse. The picture on the right is of the partial solar eclipse taken with the camera. The original print is old, and covered in fixer stains, so forgive the fuzzyness of the picture.

To show the difference between the telephoto pinhole, the wide angle pinhole, and a normal camera, Larry took pictures of a building from the same distance with each camera. The change in magnification is remarkable. The first picture was taken with the wide angle lens, the second with a 50mm camera, and the third with the telescope pinhole. The detail that you can see in the third picture of the archway shows the magnification of the pinhole camera. This was from a very 'thin' negative which was exposed for 20 minutes (ASA 100 film) showing reciprocity failure. The f-stop of the telepinhole camera was calculated to be f/1786

The wide angle pinhole photo was made by placing the film close to the actual pinhole in the small 'camera' of 1" focal length. The effect is amplified by putting water inbetween the pinhole and the film, bending the light more. The telescope pinhole in just like any other pinhole, except that the film is placed far away from the pinhole at 60 inches. Both cameras were loaded and unloaded in the darkroom.

Page by Tom

©1997 The Exploratorium 3601 Lyon Street San Francisco, CA 94123