The photographs with soft blurry background work as a good way to highlight the main subject and get rid of any distractions in the background. This type of photography requires smaller depth but a sharp focus on the subject. By following a few tips you can blur the background.
ONE OF the easiest things you can do is position the subject as far away as possible from any background objects behind them. Put the camera on the portrait mode with a large aperture which will make the depth of field smaller. Try taking a few shots at different apertures and see how it affects the background of your shots – this is the best way to learn how to get better control in your shots with a blur background.
A good thing about zooms is that they enable you to really fill up your frame with your subject that can give it more prominence and less to your background. For blurring the background, shooting with zoom in at the 55mm end of the lens can be a good option. This means you can stand further back from the subject to push the background even further away from your camera. You’ll probably still get nice blurry backgrounds if you use the fastest aperture available.
The other good thing about zoom lens is that they enable you to really fill up your frame with your subject which can give it more prominence and your background less.
Another good solution in some ways is to buy a good photo lenses. Different lenses have different maximum apertures and focal lengths, and can help in making your depth of field smaller.