Use the aperture setting to get better results on your photos.
The aperture of a camera lens is one of three things in photography that are combined to control how a photograph looks (the other two being shutter speed and ISO sensitivity). Aperture refers to the size of the lens diaphragm, and controls how much light hits the sensor (or film). Apertures on lenses can either be fixed or variable; generally, fixed aperture lenses, especially fixed aperture telephoto lenses, are more expensive. Aperture size is used to control depth of field in an image, or how much of the photograph is in focus.
Instructions
1. Turn on your camera and turn the mode dial on the top of the camera to "A."
2. Locate the mode control dial on your camera. On Canon SLRs, this is the wheel to the right of the LCD screen. On Nikon and Olympus cameras, it is on the top part of the camera behind the shutter button or on the front of the camera under the shutter button, depending on the model. On Sony cameras, it is on the front of the camera under the shutter button.
3. Look through the viewfinder of the SLR and rotate the mode control dial; you will see the aperture value change on the bottom of the screen.
4. Select high aperture values, usually f9, f11 or f22, for landscape photos where you want to have a lot of the image in focus.
5. Select low aperture values, such as f2.8 or f3.5, to create dramatic images where only the subject is in focus while the background is blurred out.
Tags: shutter button, aperture values, camera under, camera under shutter, control dial, fixed aperture