Tea Egg's Films!: Brief history of photographic film

Hello guys! Let’s talk about a brief history of photographic film today. It originated in England in the early 18th century, and has been through several huge changes.

1. Calotype (卡羅法):Invented by William Henry Fox Tablet in 1835, the Calotype process is paper negatives with
Silver(I) chloride (AgCl,氯化銀).

2. Wet Plate Processing (濕版火綿膠攝影法): It’s a less expensive film and its light sensitivity was a lot better.

(Calotype[1])

(Wet Plate Processing[2])

3. Color photographic film: The first color photographic film was invented by German physicist Maxwell in 1861.

4. Flexible photographic roll film: The Kodak company produced a new type of light-sensitive material in 1888. Different from the original film which was a coating on a paper base, the new image-bearing layer was transferred to a hargelatin support. Then the first transparent plastic roll film was devised the next year. From then on, the type of photographic film was confirmed.

Hope this information will let you guys know more about photographic films. In the end, I would like to post a picture taken in my hometown, Hsinchu, It's the intersection I will pass through everyday. Although it was taken by cellphone, it's still a nice photo:)