Lesson 02 The Evolution of the Camera
From the Film Camera to the Digital Camera
Before the digital camera was invented, we had the film camera.
It captured an image on a piece of film every time we took a picture.
Once used, the film could not be erased or reused.
To take pictures, photographers needed not only a camera, but also film, which they had to buy every time they wanted to take another photograph.
Furthermore, taking a photograph required knowledge, skill, and practice.
A photographer needed to learn how to decide an adequate composition for the picture, to adjust the focal length, and to set the film and the shutter speed before shooting.
It was important to prepare carefully if a person was going to take a good photograph, because it was nearly impossible to change anything once the photograph had been taken.
The digital camera has changed all that.
Since today’s digital cameras store photographs in the form of digital images, no film is needed.
In other words, taking pictures with a digital camera is practically free.
As a result, most people are taking far more photographs than they would ever have before.
In the past, when a family took a trip to the countryside for the weekend, they might have taken 10 to 20 photographs.
Today, many families will take 100 to 200 pictures during the same countryside trip.
When they return home, they can choose the shots they want to keep and discard the rest.
The discarded pictures cost them nothing, except perhaps a little time.
Moreover, the digital camera has made it astonishingly easy to take photographs by making all the shooting processes automatic.
People who know next to nothing about photography can still produce high-quality photographs.
The transition from the film camera to the digital camera has changed our idea about what to take pictures of.
When photographers used film in the past, each photo cost money.
Thus, people took pictures mostly on special occasions, such as weddings, graduations, and trips to exotic places.
Now we can take pictures of anything we want, whenever we want.
No one thinks that taking a picture of tonight’s dinner, a lovely pet, or a book you like, is strange or a waste of money.
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