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Camera Timeline
1.
2. Johann Heinrich Schulz discovered that
a substance called silver nitrate would
change color when exposed to light.
This paved the way for the first
pictures to be taken and processed.
3. Joseph Niepce developed the camera obscura and
took the first photo with it. It wasn't ideal, though,
because it took 8 hours of light exposure to make a
picture, and the picture faded with time.
4. Louis Daguerre invented a new way to take pictures.
It only needed 30 minutes of light exposure, and the
image didn't fade with time.
5. William Henry Talbot developed the Calotype process.
This made it possible to make multiple copies of the
same picture.
6. With the new Collodion process, cameras only
needed a few seconds of light exposure to make a
picture.
7. Up until this time pictures had to be developed
immediately after being taken. Richard Leach Maddox
invented the gelatin dry plate silver bromide process,
which made it possible to take a picture and develop it
later.