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How Photography Began

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BEGINNINGS OF PHOTOGRAPHY, The

First, the name. We owe the name "Photography" to Sir John Herschel , who first used the term in 1839, the year the photographic process became public. (*1) The word is derived from the Greek words for light and writing.

Before mentioning the stages that led to the development of photography, there is one amazing, quite uncanny prediction made by a man called de la Roche (1729- 1774) in a work called Giphantie. In this imaginary tale, it was possible to capture images from nature, on a canvas which had been coated with a sticky substance. This surface, so the tale goes, would not only provide a mirror image on the sticky canvas, but would remain on it. After it had been dried in the dark the image would remain permanent. The author would not have known how prophetic this tale would be, only a few decades after his death.

There are two distinct scientific processes that combine to make photography possible. It is somewhat surprising that photography was not invented earlier than the 1830s, because these processes had been known for quite some time. It was not until the two distinct scientific processes had been put together that photography came into being.

The first of these processes was optical. The Camera Obscura (dark room) had been in existence for at least four hundred years. There is a drawing, dated 1519, of a Camera Obscura by Leonardo da Vinci; about this same period its use as an aid to drawing was being advocated.

The second process was chemical. For hundreds of years before photography was invented, people had been aware, for example, that some colours are bleached in the sun, but they had made little distinction between heat, air and light.

In the sixteen hundreds Robert Boyle, a founder of the Royal Society, had reported that silver chloride turned dark under exposure, but he appeared to believe that it was caused by exposure to the air, rather than to light.

Angelo Sala, in the early seventeenth century, noticed that powdered nitrate of silver is blackened by the sun.

In 1727 Johann Heinrich Schulze discovered that certain liquids change colour when exposed to light.

At the beginning of the nineteenth century Thomas Wedgwood was conducting experiments; he had successfully captured images, but his silhouettes could not survive, as there was no known method of making the image permanent.

The first successful picture was produced in June/July 1827 by NiÐ"©pce, using material that hardened on exposure to light. This picture required an exposure of eight hours.

On 4 January 1829 NiÐ"©pce agreed to go into partnership with Louis Daguerre . NiÐ"©pce died only four years later, but Daguerre continued to experiment. Soon he had discovered a way of developing photographic plates, a process which greatly reduced the exposure time from eight hours down to half an hour. He also discovered that an image could be made permanent by immersing it in salt.

Following a report on this invention by Paul Delaroche , a leading scholar of the day, the French government bought the rights to it in July 1839. Details of the process were made public on 19 August 1839, and Daguerre named it the Daguerreotype.

The announcement that the Daguerreotype "requires no knowledge of drawing...." and that "anyone may succeed.... and perform as well as the author of the invention" was greeted with enormous interest, and "Daguerreomania" became a craze overnight. An interesting account of these days is given by a writer called Gaudin , who was present the day that the announcement was made.

However, not all people welcomed this exciting invention; some pundits viewed in quite sinister terms. A newspaper report in the Leipzig City Advertiser stated:

"The wish to capture evanescent reflections is not only impossible... but the mere desire alone, the will to do so, is blasphemy. God created man in His own image, and no man- made machine may fix the image of God. Is it possible that God should have abandoned His eternal principles, and allowed a Frenchman... to give to the world an invention of the Devil?"

At that time some artists saw in photography a threat to their livelihood (see Artists and Photography ), and some even prophesied that painting would cease to exist.

The Daguerreotype process, though good, was expensive, and each picture was a once-only affair. That, to many, would not have been regarded as a disadvantage; it meant that the owner of the portrait could be certain that he had a piece of art that could not be duplicated. If however two copies were required, the only way of coping with this was to use two cameras side by side. There was, therefore, a growing need for a means of copying pictures which daguerreotypes could never satisfy.

Different, and in a sense a rival to the Daguerreotype, was the Calotype invented by William Henry Fox Talbot , which was to provide the answer to that problem. His paper to the Royal Society of London, dated 31 January 1839, actually precedes the paper by Daguerre; it was entitled "Some account of the Art of Photogenic drawing, or the process by which natural objects may be made to delineate themselves without the aid of the artist's pencil." He wrote:

"How charming it would be if it were possible to cause these natural images to imprint themselves durably and remain fixed on the paper!"

The earliest paper negative we know of was produced in August 1835; it depicts the now famous window at Lacock Abbey, his home. The negative is small (1" square), and poor in quality, compared with the striking images produced by the Daguerreotype process. By 1840, however, Talbot had made some significant improvements, and by 1844 he was able to bring out a photographically illustrated book entitled "The Pencil of nature." (See note HERE).

Compared with Daguerreotypes the quality of the early Calotypes was somewhat inferior. (See comments on Claudet). However, the great advantage of Talbot's method was that an unlimited number of positive prints could be made (see also Brewster ). In fact, today's photography is based on the same principle, whereas by comparison the Daguerreotype, for all its quality, was a blind alley.

The mushrooming of photographic establishments reflects photography's growing popularity; from a mere handful in the mid 1840s the number had grown to 66 in 1855, and to 147 two years later. In London, a favourite venue was Regent Street where, in

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