Aperture priority lets you set the aperture you want and the camera sets the shutter speed for you. You use it when you want to control depth of field.
Shutter priority lets you set the shutter speed you want and the camera sets the aperture for you. You use it when you want to control how motion is rendered in the photograph.
Program mode sets both shutter speed and aperture for you. Use it when you are not concerned with aperture or shutter speed control.
Manual or Aperture Priority.
Exposure, in digital or film photography, is determined by aperture and shutter speed. On a manual camera, the user selects both values.On an automatic camera, there are four possibilities:Manual mode. User selects both aperture and shutter speed.Shutter priority. User picks the shutter speed and the camera adjusts the aperture to ensure proper exposure.Aperture priority. User picks the aperture and the camera adjusts the shutter speed to ensure proper exposure.Program mode. The camera selects both values.
Aperture priority is the use of your aperture setting on your camera has priority over the speed priority setting. You want to use your aperture priority in the case of areas with low lighting, while your speed priority settings are set for action photos, such as sporting events. Of course, you also have to take into consideration the ISO of your film. The lower your ISO the likelier you want to use your aperture priority, while the higher the ISO, the higher likely you're going to use your speed priority.
Aperture Priority has the camera set the shutter speed for you allowing you to set the aperture and it will set what shutter speed it thinks is best for your current light situation.
aperture settings
Apple users can use Aperture for there photography needs.
F-Stop
F Stop
The largest camera aperture is f stop 1.4, which lets the most amount of light into the camera.
Aperture Magazine is a quarterly photographic magazine and publishing work. The articles are devoted to the fine art of photography. Aperture Magazine is a non-profit organization.
is a setting on some cameras that allows the user to choose a specific aperture value while the camera selects a shutter speed to match.
The three building blocks are ISO shutter speed and aperture