Getting a background blur is one of the first things that many beginning photographers want to learn how to do. This helps to put focus on the subject and set your images apart from snapshots and is something that I use a lot as a Phoenix, Arizona Wedding Photographer To understand how to blur the background, you must have an understanding of Aperature. As I mentioned in my previous post aperature, shutter speed, and ISO are the three main settings that you want to learn how to control on your camera first. The Aperature is the whole through which the light enters the camera. On your camera, you can control how big the whole is. These controls are called f-stops. Now it gets a little confusing at first, but a lower f-stop number actually means a bigger hole and a larger number means a smaller hole.
So how does all this affect your images in photography? The aperature affects the depth of field which means how much of your image is in focus. A smaller f-stop number on your camera (a bigger aperature hole) means a shallow depth of field, or that only a certain depth in your images will be in focus and the rest will be blurry. Thus you can achieve the blurred background look in wedding photography by using a small f-stop number. A larger number will mean that more will be in focus. So if you want everything to be in focus even at a great distance, you will use the largest f-stop number (smaller hole).
Now the tricky part is that if you change the f-stop it lets more or less light into the camera so in manual mode, you will also have to adjust other settings to get a properly exposed image. However, the best place to start as a beginner is to use Aperature priority mode usually labeled as Av on your camera. In this mode, you can change the aperature, and the camera will automatically change the other settings to expose the image properly. It is a good place to start practicing! As a Phoenix, Arizona wedding photographer for over 5 years, I love to help people unleash their creative power by learning how to use their cameras.