- Inside a completely dark room, a tiny hole is created in one wall. Through the hole light is focused, and the outside scene is projected on the opposite wall (which is upside down.) The hole acted like a lens, focusing and projecting light onto the wall.
- The modern camera came one step closer when Isaac Newton and Christian Huygens perfected the understanding of optics and the process of making high quality glass lenses.
- He added *film* to create the first successful photograph. (A glass lens, a dark box, and film.)
- Light passes through the lens, into the camera, and exposes the film. A digital camera is still composed of a lens, a dark box, and film.
- Digital cameras capture the images with an electronic sensor called a CCD
- On "auto mode," the camera will completely control flash and exposure. And on "program mode," automatic-assist, just point and shoot (you can usually control flash and a few other camera settings.)
- Portrait mode is used to attempt to blur out the background, and the camera will try to use the fastest available lens setting (aperture).
- The sports mode is used to freeze motion; camera will use the highest shutter speed possible.
- It is an easy yet essential skill for beginners to learn.
- no flash. A disabled flash. You would use it when you wanted natural light in the photograph, which can sometimes be more dramatic.
- Auto-flash. It is enabled by default and will automatically fire if the camera thinks it needs more light.
- Too much light will cause the picture to be washed out.
- Not enough light and the picture will be too dark.
- A "stop" is a relative measurement of light.
- 1 "stop"
- 2 "stop"
- Longer shutter speeds means more light.
- Shorter shutter speeds mean less light.
- Aperture on a camera controls light.
- Smaller F-stops numbers means larger openings, thus giving more light.
Wednesday, September 12, 2012
The Camera
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