Basics of Digital Photography
Exposure
A combination of how much light is let through the lens and how fast the camera takes the picture. These combined results in how much light is let through the camera’s lens.
UnderexposedThere is not enough light entering the camera nor for a long enough time, due to this the picture looks rather dark.
|
OverexposedThere is too much light entering the camera for too much time making the picture look very bright.
|
Equivalent ExposureThe combination of the amount of light let through the lens and how long the light is let through for results in the right amount of light to enter the camera.
|
Aperture
F-Stop controls the amount of light that is let through the lens of the camera. The smaller the f-stop the more light is let through the lens when taking a picture. They are measured in f-Stops: f2.8, f4, f5.6, f8, f11, f16, f22
Depth of Field
Distance between the nearest and farthest objects that appear more in focus in a photograph. The two main types of depth of field are shallow and extended. Shallow depth of field is when only the main subject of interest is in focus (normally the object in the foreground) and everything else behind it is blurry (the background). Extended depth of field is when the background is sharp and clear and the foreground is blurry.
Resolution
The number of pixels that are put together to form an image. Pixel’s are boxes of color that form images. The higher the resolution, the more boxes and the more crisp the image is going to be. The lower the resolution the less boxes and the less crisp the image is going to be.