Question

When did Kodak introduce film photography to the commercial market?

Answer 1

1889

Answer 2

What was the benefit of a caloytpe over a daguerreotype?

Answer 3

i will type as fast as i can so bear with me

Answer 4

Daguerreotype
The daguerreotype method was invented in the 1830s by Daguerre, a French painter and physicist. He discovered that exposing an image onto a copper plate coated with iodized silver would produce a lasting image if it was also exposed to mercury vapor and fixed with a common salt solution. Later, other vapors were used. Daguerreotypes are captured on polished silver, making it reflective, like a mirror.

Daguerre collaborated with Joseph Nicephore Niepce, but Niepce died by the time the first daguerreotype was produced in 1837. The method was unveiled in 1839 and became popular, especially in the United States.


Calotype
Talbot moved on to another photographic process in which photographic paper was brushed with a salt solution, dried, then brushed with a silver nitrate solution and dried again, creating a silver chloride. Talbot then added gallic acid, making the paper more sensitive to light.

After exposure, the image was fixed with another iodized solution. To make a print, the negative was placed on top of more photo paper, laid flat in a glass frame and allowed to develop in sunlight. Talbot patented this process in 1841.


Hope this helps.

Answer 5

thanks :)

Answer 6

np