This post will give you 3 simple ways to blur the background of your photo. You can dramatically change the impact your photograph has by intentionally blurring your photo's background. It's agreat way to visually separate your main subject from a distracting background.
A blurry background can visually separate the subject from distracting things in the background of your picture. That makes a better photograph. There are two ways to do this when taking pictures.
Additionally there are also many ways to do this after you take your photo with photo editing software. This article, blurring your background with software, gives a few of these blur techniques in detail.
If you use Camera Settings that give you a small depth of field, your subject will be sharp and your background will be blurry. Use the largest lens opening (smallest f/stop number) you possibly can. For a detailed explanation of controlling depth of field, go to What-is-depth-of-field?
I shot this photo of this toy car sitting on top of my tripod using a large aperture of f4 with my a 24-105 lens zoomed all the way to its longest 105mm focal length.
You can see the background is very blurry and completely out of focus. There is a second reason the background is extremely blurry. The car is very close to the camera, which means the background is relatively much farther away from the subject.
With this picture of my model leaning against the fence, I was able to blur the background by using a wide-open aperture of f2.8.
This is a great technique to use when doing portraits.
It's a common challenge that photographers can easily face when shooting portraits. You want the background to be blurry and you can't get enough distance between the subject and the background. A fast telephoto lens is a big help.
Blurring the background can be done with camera and subject movement. We'll cover that next option briefly here, but you can get a more complete guide on that method here: blur the background with movement.
One fairly easy way to create motion blur in the background is to take your picture while following a moving subject. The idea is that your subject stays fairly sharp but the background is blurred to show motion. This is called panning and you see it a lot in motor sports and sometimes in wildlife photography.
To get this effect, the camera must track the direction of the subject as the shutter button is pressed. You can see how the background blurs from motion, but the subject stays sharp.
If the bird stays in the same spot within the camera's viewfinder while the picture is being taken, it will remain sharp even though the camera is moving.
Playing around like this, creating your own little photography assignments is a great way to improve your photography, not only when trying to learn how to blur the background, but with any aspect of photography you wish to understand better.
The good news is that you have several ways to blur the background with editing software. The days of being forced to buy expensive software to make your background blurry are over. Photoshop has several different techniques to use. We'll cover a few of them and also give you access to a free online app to blur the background.
Gaussian Blur is sophisticated way to add blur to your photo on any area of the image, including the background. In this example photo of a high school basketball game,I used a "filter" in Adobe Photoshop called Gaussian Blur.
Sometimes it is difficult to separate your subject from the background when you take the photo, so you must do some photo retouching. The spectators in the background were distracting and I wanted to blur them. Here is step by step method.
If you look closely at the same photo underneath the top photo, you'll see that the spectators are a bit more blurred, but it still looks completely natural. This is a good use of Gaussian Blur.
Radial Blur spreads out in a radial direction, similar to spokes coming out from the center of a wagon wheel or like the colored streaks coming out from a fireworks explosion.
In Adobe Photoshop, you can add a radial blur to the background or the subject or both. In this basketball photo I created a radial blur, centered behind the basketball. This really creates the feeling of motion toward the ball.
I then "hid" the blurred basketball in the blurred duplicate layer mask, so that it remains sharp in the final photograph.
These are just a few examples when you may want to blur the background on purpose. Remember to have an attitude of curiosity when trying new techniques with your photography. Most of all, have fun learning how to take better pictures.
If you're like me you like simple solutions to get things done. Here's an easy to use photo editor app used to blur your background. It's called befunky. You can choose the photo to edit from several different locations.
The user interface is really simple to follow.
You can adjust the amount and location of the area to blur with sliders.
You can save the file back to any location you wish.
I used befunky to blur the background in the first photo included in this article. (scroll to top)
Here's the link: Befunky.