understand aparture

The aperture is also a very important setting on your  camera. It adjusts the size of the opening in the lens. As it changes size, it affects both the light of the image and the depth. Like the shutter speed, the aperture can be opened up to let in more light or closed for less. It also affects the sharpness of your photo like the shutter, but in a different way. Basically, it can make your background clearer or blurrier. For example, if you're shooting a landscape you may want a smaller aperture so everything in your background and foreground is sharp. But with a portrait, you may want a larger aperture. It will decrease the depth so the face is sharp, but the background is soft and out of focus. For general shooting you should select a medium aperture, a setting of f/5.6 or smaller. In order to adjust your aperture, make sure your camera is switched to aperture priority or manual mode. If you do not understand the feature just select auto.