Photogram

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A photogram is a picture made without a camera. Objects are laid directly on light‑sensitive paper and the paper is exposed to light. The resulting image shows white where there was no light, black where the light was strongest, and greys where the light was partially blocked. This cameraless method is also called photogram or rayography in some cases.

How it’s made and what you see
- You place objects on photographic paper and shine light on them. After exposure, the paper is developed like a normal photograph.
- The image is a shadowy silhouette of the objects, with tones that depend on how much light passed through or around them.
- You can get a negative‑looking result, or, by making a different kind of print, a more natural positive image.

History and key artists
- The idea of shadows and light to create images goes back a long way, but the photogram as an art form grew in the 20th century.
- Early artists who explored cameraless photography include Christian Schad (whose works were called Schadographs) and Man Ray, who named his versions rayographs.
- Others who experimented with photograms include László Moholy‑Nagy, Imogen Cunningham, and Pablo Picasso.
- A famous use of the technique in science and art is Anna Atkins’s cyanotypes, a blue print book of seaweed in the 1840s.
- The method helped movements like Dada, Constructivism, and Bauhaus, and it remains a tool for artists today.

Techniques and materials
- Photograms can be made in a darkroom with a traditional enlarger, or with other light sources like lamps, the sun, or even flashes.
- The choice of light source affects the sharpness and edge quality of shadows. A strong, small light makes crisper shadows; a broad or moving light softens them.
- You can use one exposure or multiple exposures, shift objects during exposure, or use moving light to create different effects.
- Some photograms are printed as direct positives; others are printed to produce a negative‑like look, depending on the process used.

Contemporary use
- Many modern artists still work with photograms, using them to explore materiality, light, and form. Notable names include Adam Fuss, Susan Derges, and Christian Marclay.
- The technique has also adapted to new media and ideas, with some artists even turning photograms into digital art or NFTs.

In short, a photogram captures light and shadow directly on light‑sensitive paper, creating unique, camera‑free images that blend science, history, and art.