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Hi, I'm Rebecca Guenther, with www.M5A1photography.com, and I'm going to talk to you about how cameras
work. Now, the first camera was called the camera obscura. It was essentially a large
room painted black, with the windows covered over and a tiny little pinhole. And what happened
was the light came in; it was reflected on the other side of the room. The camera obscura
was a small box that illustrators used as a camera only the film was their piece of
paper. So, it was a box, which is essentially now a pinhole camera, with a tiny little hole
in it that would project the light in and the image would show up where they could see
it and then sketch whatever they wanted to. This evolved over time, obviously, to a point
where glass was used coated with chemicals, and that was the film and the image. There
was no paper involved in that, and it was a one, one, that's it; there's just one, like
a Polaroid. Then, of course, there is Polaroid, and then there's SLR, which means sing single
lens reflex cameras, and nowadays there's digital. Now, SLR's and the digital SLR's
are essentially the same. They are, they look essentially like this; sometimes bigger, sometimes
smaller, and you have a lens on the front which can be focused, and you can adjust the
aperture. And then, when the lens comes off as it does with digital or regular SLR's you
can see the inside of the camera has a mirror. Now, this mirror, when the light comes in,
bounces the light up to the eyepiece where you look through, and that's how you see what
the camera is going to be taking a picture of. When you push this button this mirror
flips up and exposes either the film plane or the digital sensor plane that is on the
back of the camera. That is where the image is captured. After this happens the mirror
flips back down and you either roll the film forward, or the camera knows to move onto
the next digital image number, and you're ready to capture your next image. And that's
how a camera works.