the negative before making a print or commanding the computer to right the image.

For Further Research:

  • The pinhole viewer can be converted into a simple camera by placing a piece of unexposed black and white print film where the tracing paper screen is located. This must be done in a darkroom. Reduce light leaks by covering the film end of the viewer and the pinhole. Point the camera at an object to be photographed and
    uncover the pinhole for several seconds. Recover the pinhole and develop the film in a dark room. Take several pictures with different exposure lengths until a suitable exposure is found. Show how the negative is inverted to correct the image before printing.

Images seen through lenses, such as this double convex lens, are inverted. This is similar to the function of the pinhole in the pinhole viewer.

Next page Teacher Resources


Last modified prior to September, 2000 by the Windows Team

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