William Henry Fox English physicist chemist inventor of the negativepositive process in photography calotype. He also studied mathematics spectroscopy astronomy archeology and linguistics. While studying at Harrow and Trinity College Cambridge he published many articles in the fields of mathematics astronomy and physics. In he served in Parliament. Talbot tried to replicate nature views with a camera obscura. But he didnt have drawing skills.
So he wanted to capture the image he saw in the camera e-commerce photo editing obscura can affect the properties of various materials and invented such a lightsensitive material. To do this he immersed a sheet of paper in a weak solution of salt and then in a solution of silver nitrate. At the same time silver chloride was formed in the paper and it became photosensitive. In Talbot took pictures with a camera on his lightsensitive paper impregnated with silver chloride. The first was a picture of the barred window of his house.
The exposure lasted for an hour. So he got the worlds first negative. He applied another similar sheet of paper to it and illuminated them. So Talbot made a positive impression. The first shots were dark fuzzy and mottled and the sensitivity of his paper was very low. The first calotype image of Talbot is the barred window of his house. Executed in In January Talbot learned that Arago had made a report at the Academy of Sciences in Paris about L. Daguerres invention the daguerreotype. This prompted Talbot to publish an account of his trial.
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