The document summarizes three different types of cameras - the daguerreotype, Polaroid, and digital camera. The daguerreotype was the first successful photography machine invented in 1837 by Louis Daguerre and produced delicate, black and white images on silver plates. Polaroid cameras introduced in the 1920s used chemicals to create practical images that did not smudge easily like daguerreotypes. Digital cameras, now the most common, can take and store images digitally and allow viewing, editing and deleting images immediately.

1. Unit 9

2. Daguerreotype
The daguerreotype was the first successful photography machine,
invented around 1837 by Louis-Jacques-Mandé Daguerre. A
daguerreotype is like a mirror, the image made is printed onto a
silver metal plate. It must be handled delicately as it can smudge
and ruin easily. The light angle is also very important, as it can
change the picture from being positive to negative.
The daguerreotype was a slow and delicate process, that created
poor, black and white images. Daguerreotypes could also only be
afforded by the rich and wealthy. This was, however, was the best
photographic process until the 1850s when other processes such
as the Collodion and tintype replaced it.

3. Polaroid
Polaroid also known as the instant
camera and is a type of camera that
later became the first camera used for
film.
The first instant camera was invented in
1923 by Samuel Shlafrock. However
American scientist Edwin Land was the
first to unveil the instant camera to the
world.
The Camera uses a mixture of
chemicals that create a more practical
image that can be kept without being
smudged or damaged easily, like the
Daguerreotype.

4. Digital
A digital camera is a camera that can take
pictures and record film and sound. Most
cameras sold today are digital, and digital
cameras are found in devices like mobile
phones.
Digital and film cameras can zoom, and
focus, which creates more interesting and
higher quality photos. However, unlike film
cameras, digital cameras can display
images on a screen immediately after
being recorded, and store and delete
images from memory.. Some digital
cameras can crop and do other image
editing, such as the brightness, contrast
and hue and saturation.