How to Get a Blurry Background (Bokeh) in Your Photos

The creamy, melted background behind a sharp subject is called bokeh, and it is the single most requested beginner look. It is not a camera mode or a filter; it is shallow depth of field, and you create it with four levers you control on any interchangeable-lens camera.

The four levers

You do not need all four. The first one matters most, and the rest stack on top.

1. Open the aperture wide

A wide aperture, a low f-number, is the main control. Set your camera to Aperture Priority (A or Av) and choose the lowest f-number your lens allows. f/1.8 · f/2.8 give a strong blur. f/4 gives a softer, gentler separation. The reason a low number is a wide opening is covered in what aperture and f-stop mean.

2. Get close to your subject

Depth of field shrinks the closer you focus. Stepping in from six feet to three feet noticeably increases the blur behind your subject, even at the same aperture. This is the cheapest lever and costs nothing.

3. Push the background back

Blur depends on the distance between your subject and what is behind them. A subject standing against a wall stays sharp against a sharp wall. Move that same subject ten feet in front of the wall and the wall melts. When you can, place your subject far from the background.

4. Use a longer lens

Longer focal lengths compress the scene and exaggerate background blur. An 85mm lens at f/2.8 blurs more than a 35mm lens at f/2.8 from the same framing. This is part of the prime versus zoom lens decision, and it is why portrait photographers reach for 85mm and longer.

Settings that work

A reliable portrait starting point: f/2 · 1/250 · ISO 200 in good light, with an 85mm lens, subject a few feet from you and well off the background. Adjust ISO up if it is dark. Keep the shutter fast enough to stay sharp; at a wide aperture your sharp zone is thin and any shake is obvious.

Sensor size also plays in. A full-frame sensor blurs backgrounds more than a smaller one at the same aperture and framing, which is one practical reason it matters. See sensor sizes explained.

Common mistakes

The most common mistake is shooting at f/1.4 or f/1.8 and missing focus on the eyes. At those apertures the sharp zone can be a couple of centimeters deep, so if you focus on the nose, the eyes go soft. Focus on the near eye, and if you struggle, stop down to f/2.8 for a more forgiving margin while keeping plenty of blur. Back button focus helps you lock focus and recompose.

The second mistake is expecting blur from a subject pressed against a wall. No aperture fixes zero subject-to-background distance. Move them off the background first.

A third is thinking you need an expensive lens. A cheap 50mm f/1.8, the "nifty fifty," blurs backgrounds beautifully and is the classic first lens for exactly this reason.

What is the best aperture for a blurry background?

f/1.8 to f/2.8 gives strong blur. f/1.4 blurs even more but the sharp zone is so thin that focus errors are common. For a balance of blur and reliable sharp eyes, f/2.8 is a safe choice.

Can I get a blurry background with a kit lens?

Yes, though it is harder. Zoom the kit lens to its longest end, open to its widest aperture there, get close, and push the background far back. The effect is gentler than a fast prime, but the four levers still apply.

Why is my background not blurry even at f/1.8?

Most likely the background is too close to your subject, or you are too far from your subject. Move your subject away from the background and step closer to them. Both deepen the blur without changing the aperture.

Background blur is one expression of depth of field. To understand the whole concept, including how to get the opposite (everything sharp), read understanding depth of field and the exposure triangle.