Getting that beautiful background blur isn’t a Photoshop trick, it’s done by using the right lens and knowing how to take advantage of it for the effect. The result is an image you simply can’t get with a phone, point and shoot, or even a DSLR and the kit zoom. It makes the subject stand out and can blur away the mess of a busy background.
Too often even professional photographers use the wrong lens or setting because it’s a lot less work and a lot less expensive. These two examples show the difference that can be achieved with a typical lens that came with a DSLR and a specialized optic. This is done in the camera – NOT Photoshop.
For the technically minded: the image on the left is comparable to an 18-55mm f/3.5-5.6 kit lens on a crop sensor body: 85mm f/8 equivalent (sadly, I’ve seen a lot of budget wedding “pros” use this exact setup). The image on the right is what comes from an 85mm f/1.4 wide open on a full frame body. It’s big, heavy, doesn’t zoom, and costs five to ten times as much. But what a difference!