Talbot's Processes - Photographic Processes Series - Chapter 3 of 12

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Working in England, at the same time as Daguerre, William Henry Fox Talbot is best known for the invention of the negative/positive photographic process that became the standard way of making photographs in the 19th and 20th centuries. His early processes of the photogenic drawing, salted paper print and calotype negative are demonstrated in this chapter.
Correction (1:13) : Talbot was a member of the House of Commons.
This project is made possible by a grant from the U.S. Institute of Museum and Library Services, grant number MA-10-13-0194.

[@grayscalemike]

When Arago, on January 7th, made known Daguerre’s invention, Daguerre received a pension from the French Government on the understanding that he was donating his discovery to the world. Shortly afterward he patented the Daguerreotype in England through Miles Berry an English patent agent. This put Talbot in an impossible situation leaving him with no option other than to take out a patent to protect himself and his calotype negative-positive process. Through Berry Daguerre registered several additional addenda with the intention to obfuscate the differences between images made on silver-coated copper and images made on paper. Even to the point of describing his process as being a photogenic process. Old myths still persist, hence “Talbot’s greed”; check the facts! The fact that French nationalistic PR was so successful that it led to Talbot’s calotype negative-positive process being referred to as “Daguerreotypes on Paper”.

[@michaelmcgee8543]

Photography makes me alive. When I take pictures ,it really stimulates me ,the way a gambler is stimulated on betting.

[@stellahorta9240]

Very well done. Thank you

[@eloyruizherrero8754]

Good explanation, thank you!

[@barrymoore4470]

The comment at 1:11 that Talbot was a member of the House of Lords is incorrect. Talbot was an MP in the House of Commons, but never sat in the House of Lords, as he never held a peerage title. He was a grandson of the second Earl of Ilchester through his mother, but was not himself a Peer of the realm.

[@dylankaniskiphotography6697]

Daguerreotypes really seem sharper and higher quality compared to calotypes. But the impact Calotype had on photography is huge, especially reproducing photographs

[@Chiaroscuro1991]

Daguerreotype was technically superior to the calotype and was the first successful photographic process. They are two different aesthetics … hard to compare them.

[@mariellonieto]

Excuse me, If I may… The term "Hypo" is how we refer to the first formulation of fixer, nothing to do with "Hypo Clearing Agent" which in fact removes all traces of "Hypo-Fixer" from the paper. The Hypo is best known as Sodium Thiosulfate (Modern day name) back in 1800's it was know as Hyposulfate of Soda (If I am not mistaken) I hope that gives you an answer :)

[@dwightbrown2808]

in a way Talbot's processes are more like modern analog photography in that it is a negative - positive process letting one make multiple prints from one negative rather than one direct positive only.

[@Oman27sunny]

Thanks! Great!

[@milliewilding8005]

Sir Joseph John Talbot hobbs is my great great great uncle. U may think I'm crazy but I'm not he was a general for Australia.

[@lewdens]

haha, thats a good one

[@milliewilding8005]

@@lewdens swear to lord a ain't lying my nanny told me about it!

[@milliewilding8005]

@@lewdens I never knew about him untill she told me

[@fanorydberg2424]

@@milliewilding8005 No, you're quite right. Just Google him. I don't think he had anything to do with Fox Talbot, though.

[@lunes-1]

Great video,keep it up!₩28

[@omari6108]

Photography is photography, but one is still better than the other ;)

[@dylanfrench6844]

Talbot built a nether portal.

[@tchristianphoto]

"Hypo" ALWAYS refers to fixer, i.e., sodium hyposulfite, which is known today by its more modern name, sodium thiosulfate (ammonium thiosulfate is the primary ingredient in rapid fixers). "Hypo-clear" should NEVER be referred to by "hypo." Hypo-clear is so called because it clears hypo: it helps to remove fixer from film or paper, resulting in a shorter wash time. Another generic term for it is "wash-aid" because of this.

[@Chiaroscuro1991]

The original name was hyposulfite of soda. When Talbot used it to remove unexposed silver chloride he described the process as “washing out” not fixing. Instead he used the term “fixing” when he used potassium iodide, bromide and sodium chloride to stabilize his photogenic drawings. It’s confusing to modern photographers.

[@michaelmcgee8543]

George Eastman website is having problems .It won't load in .I can't get to my account.

[@Acquavallo]

Also what about the work of Hercule Florence with photography over in Brazil?

[@TheStockwell]

Well, this video isn't about him. Florence is, however, mentioned 43.5 minutes into another video from the George Eastman Museum: kzbin.info/www/bejne/rYezkoqvo9eDlbc

[@Acquavallo]

What do you mean by Hypo? Because you seem to refer to it as the fixer, even though when developing we use both fixer and hypo-clear

[@Chiaroscuro1991]

Hypo refers to the old term “hyposulfate of soda” that Talbot used to remove the unexposed silver chloride. Back then Talbot referred to this as “washing out.” He actually used the term “fixing” when he used potassium iodide, potassium bromide and sodium chloride to stabilize his photogenic drawings.

[@nathankim9965]

so what does the gallic acid do? Is it similar to the asphaltum?

[@qnxe]

yes

[@Chiaroscuro1991]

Gallic acid is a developer for early silver halide photography. Asphaltum was a light sensitive substance used to make the worlds oldest known photograph, a heliograph, made by Nicephore Niepce.

[@blakegriplingph]

Talbot was regarded by some as a proto-patent troll, as he'd sue everyone whom he viewed as infringing on his rights.

[@aluncrockford4152]

Or it could be said, somebody developed a process then patented it, this is a standard form of operation for inventors, he eventually removed the patent. Daguerre did exactly the same thing.

[@mzny4314]

Alun Crockford his unfortunate patent control allowed the French to make more progress in 1850’s photography than the English. The British were stifled by Talbots greed.

[@peterrenn6341]

@@mzny4314 It's more complex than that. See some of the other comments here. - And by the 1850s Archer's Wet Collodion (which was entirely unpatented) rendered both Talbot's and Daguerre's processes largely obsolete.

[@richarddalton1232]

What is porcelain stifle? The box of eastman plates says emulsion 2470???????

[@Chiaroscuro1991]

This has nothing to do with this video

[@lucutes2936]

2020

[@imanuelyonatanfreudian]

daguerre can capture landscape?

[@Chiaroscuro1991]

Sure

[@lewdens]

Hello Southern.

[@tennisguyky]

Daguerreotypes are far superior in quality to calotypes