Olympus E10 E-10 Instructions (English) - Page 71

Taking Pictures: Brightness (Exposure) (Aperture and Shutter Speed) In this section we will show you how to adjust aperture and shutter speed to achieve the best exposure in your pictures for normal or special effects. The camera uses the aperture value and shutter speed to determine the brightness (exposure) of an image. The shutter speed determines the length of time that the shutter remains open. With a large aperture the image becomes brighter (a greater area of the lens is used to increase the amount of light), but the depth of field becomes shorter, causing objects closer and farther away from the camera to be out of focus. Slower shutter speeds create brighter images but increase the possibility of blurring the image as result of subject movement or camera shake. 5