William Henry Fox Talbot: Inventor of the Negative-Positive Photo Process

William Henry Fox Talbot was on his honeymoon at Lake Como in northern Italy in 1833. Although he was trying to draw the lake and its surroundings, he was getting frustrated by his poor drawing abilities. He used a camera lucida and a camera obscura, two devices that use lenses to project an image onto a piece of paper to aid in drawing, but he didn’t find either one very satisfactory.

Out of frustration, he wrote the following quote in his journal.

How charming it would be if it were possible to cause these natural images to imprint themselves durable and remain fixed upon the paper! Why is this not possible? That was the question I asked. —William Henry Fox Talbot

In this quote, Fox Talbot is saying basically, “I wish these scenes would draw themselves.” And why not? He began a new project in an effort to restore the image. It was known that certain chemicals change color or get darker when exposed to light. The challenge was to stop them from changing and thus become permanent images.

Fox Talbot was the man for the job. He was a scientist, mathematician, botanist, etymologist, and Member of Parliament. He had a high education, was well-connected with the English elite, and was well-connected. He was humble, not self-promotional. For that reason, much of his contributions to photography, publishing, and scientific discoveries are not often appreciated nor particularly well documented.

William Henry Fox Talbot in 1864.

The First Photographs

Upon his return to his home at Lacock Abbey in southwestern England near the city of Bath, Fox Talbot began experimenting with coating paper with silver nitrates and silver chlorides noting how they changed when exposed to light. He was not alone in this experimentation.

In France, Nicephore Nippece, Louis Daguerre and Hippolyte Baiard carried out similar experiments. In the U.S. Samuel Morse, the inventor of the telegraph had experimented with silver nitrate as early as 1810. Others in England including Sir Humphry Davy and Thomas Wedgwood also conducted similar experiments. In all cases, the challenge was not in getting an image to appear on paper, but to stop it from getting darker and turning black.

By the fall of 1834, Fox Talbot was having considerable success in fixing the image and was sending paper prints to friends. Some were images of items laid on the sensitized paper, but he soon began using little wooden boxes with a lens to capture natural scenes. They were called “Mousetraps” by his wife, partly because they looked similar to mousetraps but also because he used them in various locations to catch the light and create images.

One of the first true photographs was of the window at Lacock Abbey.

The window in the South Gallery of Lacock Abbey, a photo made from the oldest photographic negative in existence. August 1835. Photograph by William Fox Talbot.

Here is the current external view of the window at Lacock Abbey:

Lacock Abbey

The window at Lacock Abbey captured by William Henry Fox Talbot in one of the first true photographs ever made.

The Negative-Positive Process

The images were negatives, so they had to be contact printed onto another piece of paper to make a positive image. Consequently, they were quite soft and fuzzy. He eventually figured out how to soak the paper negative in an oily solution to make them more transparent to give a sharper, more distinct image.

At first, it was thought that the two-step process was disadvantageous. But, he quickly realized that the negative to positive process could be used to make multiple copies of the exact same image. This negative-to-positive process would become the most common process for making photographs for the next 160 years.


Meanwhile, in France, Louis Daguerre was working on a similar idea but with a totally different process. In Daguerre’s process, a sheet of copper is coated with a thin layer of silver, highly polished, and then sensitized with iodine and bromine vapors. After being exposed in a camera, the metal sheets were processed with heated mercury fumes.

When he presented his photographs at the joint meeting of the French Academy of Scientists in August of 1839, the world was stunned and amazed. Daguerreotype shops began to pop up immediately as Daguerre sold supplies and cameras to new professionals. The French government gave Daguerre a lifetime pension in exchange for making the patent public property.

The mood was very different in England. The ability to invent scientific inventions was generally reserved for the wealthy, who were able to afford it without any financial aid. Patents were frowned on and considered greedy ways to profit from ideas that belong to all. Fox Talbot’s contributions to the English government were rarely acknowledged and he was therefore generally ignored.

Nelson’s Column under construction in London’s Trafalgar Square in 1844. William Henry Fox Talbot.

Further Development

Daguerre’s announcement spurred Fox Talbot to get back to work. Although Daguerre’s images are sharp and clear, there was no way to duplicate them.

In 1841 Fox Talbot patented his negative/positive process as the “Calotype.” He was then able to sell licenses in England, France, and America, sometimes marketed as Talbotype. However, Talbot failed to secure patent protection for the positive/negative process despite long court cases. As the positive/negative process became better understood and paper printing became easier, Talbot’s methods became even more valuable over time.

Fox Talbot also began hand-tinting the paper prints to make color photographs, invented the half-tone process for printing, and published the first book illustrated with photographs, The Pencil of Nature.

Who was First?

Who actually made the first photograph is still open to dispute. It is possible to assume the French believed it was Daguerre, while the English thought it was Fox Talbot. The Fox Talbot Museum at Lacock Abbey and the Niepce Museum at Niepce’s home in the commune of Saint-Loup-de-Varennes, France both proudly proclaim that they are the home of the first photograph.

Fox Talbot Museum
A view inside the Fox Talbot Museum at Lacock Abbey.
Nicephore Niepce’s House Museum in France.

The first photograph could have just as easily been attributed to Morse or several others, but most people would agree that the direct line to modern photography and the processes up to today’s digital imaging runs from William Henry Fox Talbot. He was the first to coat paper and make a duplicable permanent image on a paper that can be reproduced in unlimited quantities.

For further reading, a great book on the life and impact of William Henry Fox Talbot, and a resource used for this article, is Fox Talbot and the Invention of Photography by Gail Buckland.

Image credits: All modern photographs by Jim Mathis