Hello! This week in science I started a new semester about photography!
The main thing I learned about this week is about the first photographs.
So the first way I learned was called the Daguerreotype that was created by Louis Daguerre who was a man who was born and lived in France his whole life. Here is how the Daguerreotype works! It creates a highly detailed image on a sheet of copper plated with a thin coat of silver. After the exposure to light, the plate was developed over hot mercury until an image appeared.
And during the same time a man from England named Henry Fox Talbot was inventing his own prototype called Talbot’s process. The main difference was the Daguerreotype is a direct photographic process without the capacity for duplication. The main differences are that calotypes are negatives that are later printed as positives on paper and that Daguerreotypes are negative images on mirrored surfaces that reflect a positive looking image. So I have to explain how Talbot’s process works so here’s how: The Talbot Process is an early photographic technique invented by Henry Fox Talbot in the 1830s. In this technique, a sheet of paper coated with silver chloride was exposed to light in a camera obscura; those areas hit by light became dark in tone, yielding a negative image. Which is really cool to see! In one of the lesson videos a man named George Did the Talbot Process and the Daguerreotype and the Talbot process took longer to dry and for the image to appear. Here is a very old image of my grandpa when he was my age:
No this is not a Daguerreotype or Talbot Process type of picture. I’m pretty sure it’s one of the first digital pictures.
Here are some pictures I took recently most of them are from my vacation to Earlton I’ll have a post about that tomorrow.
That’s it!
JakeL blog 