Sony ZV-1 Background Blur: Defocus Button, Zoom and Distance

To blur the background on a Sony ZV-1, press the Background Defocus button, which is C1 by default, and the camera opens the lens all the way. Then step closer to your subject, move them away from the wall behind them, and zoom in a little for even softer backgrounds.

That is the short answer. The rest of this guide shows you how each piece works, so you can get the blurry background you want on purpose instead of by luck.

What makes a background blurry, in plain words

Three things decide how soft your background looks: how wide the lens opens, how much you zoom, and how far things are from each other. You can use all three on the ZV-1.

The first one is the aperture. Think of it like the pupil of your eye. In the dark your pupil gets big, and in bright sun it gets small. A lens works the same way.

Apertures are written as f-numbers, like f/1.8 or f/5.6. Here is the odd part: a small number means a big opening. So f/1.8 is a wide-open pupil, and f/5.6 is a squinting one.

A big opening gives you a thin depth of field. Picture a sheet of glass standing between you and the background. Only things touching that glass look sharp. A wide aperture makes that glass thin, so your face is sharp and the bookshelf behind you turns soft. That soft, creamy look is often called bokeh.

The ZV-1 uses a 20MP 1-inch sensor behind a 24-70mm equivalent f/1.8-2.8 zoom lens. In Digital Camera World's review, the 1-inch sensor combined with the wide aperture Zeiss zoom means you can get nicely blurred backgrounds, and longer zoom settings help too.

Use the Background Defocus button

Sony built a shortcut for blur into the ZV-1. Digital Camera World describes it as a switch that helps amateur video makers get cinematic background blur without being bothered by technicalities. PetaPixel's launch coverage put it simply: a mode that lets you open the aperture all the way at the press of a button.

Step 1: Find the button

In the default settings, Background Defocus is assigned to the C1 button. According to Sony's Help Guide, you can use it while shooting still images or movies.

Step 2: Press it and watch the screen

The first press turns on Background Defocus mode, and the background becomes defocused. After that, each press switches between Defocus and Clear.

While the mode is on, the aperture number on the screen is replaced by a Defocus or Clear icon. That icon is your clue that the camera is in charge of the aperture now.

Setting	What the aperture does	What you see
Defocus	Locked at wide open	Softest background
Clear	Locked at F5.6	Sharper background

A good habit: use Defocus for talking to the camera, and switch to Clear when you want people to see where you are, like a street or a landmark behind you.

Step 3: Turn it off

Press the MODE button and the camera returns to its ordinary mode, with the aperture back at its former value. Sony's Help Guide also lists other operations that cancel the mode and reset the aperture the same way. So if the icon vanishes on its own, you probably did one of those things, and nothing is broken.

If C1 does something else on your camera

Maybe a friend set up the camera, or you bought it used. You can put Background Defocus back on a button through MENU, then Camera Settings2, then Custom Key, then the key you want. Pick the button you can reach most easily while holding the camera at arm's length.

A few limits to know about

• Background Defocus is not available in some shooting modes, which Sony lists in the Help Guide. If pressing C1 does nothing, check that list first.
• You cannot change between Defocus and Clear while using Set Focus or Focus Magnifier in this mode.
• Because the aperture is locked, the camera may not always reach the best exposure, depending on the shooting mode and conditions.

That last one matters on bright, sunny days. A wide-open aperture lets in a lot of light, like a big pupil in the sun. If your picture looks too bright and washed out, press the button again to try Clear, or press MODE to leave the mode. This is a normal thing to run into while you learn, and it teaches you how light and aperture are tied together.

Set the aperture yourself for more control

The button is great when you are in a hurry. When you have a minute, setting the aperture yourself teaches you what is going on and lets you pick any number you like.

The ZV-1 has no mode dial, but all the regular shooting modes are still there through the Mode button. There is only one control dial on the camera, a dual-function dial that also works as the four-way navigation pad.

Press Mode and choose aperture priority. In this mode, you pick the aperture and the camera picks the rest. Turn the control dial until the f-number is as low as it will go. That is your widest opening.

The camera then sets the shutter speed for you. Think of the shutter as a door that opens and closes. A big aperture lets in lots of light, so the door only needs to open for a moment. If you want to understand how aperture, shutter and ISO work as a team, the exposure triangle guide walks through it with simple examples.

Use the zoom to your advantage

Zoom changes the focal length. A small number like 24mm shows a wide view. A big number like 70mm shows a tight, close-up view.

Digital Camera World notes that longer zoom settings help with background blur on the ZV-1. Zooming in makes the background look bigger and closer behind your subject, so the soft blur fills more of the frame.

There is a small trade. The lens is rated f/1.8-2.8, so its widest opening gets a bit smaller as you zoom toward 70mm. In most cases the extra zoom still makes up for it, so it is worth trying both and comparing.

Watch your distance when you zoom. Digital Camera World found you can only get the 5cm minimum focus distance at the widest zoom setting. The review calls the big change in minimum focus distance when you zoom in annoying. In plain words: if you zoom in and the camera will not focus, take a step back. You are too close for that zoom setting, not doing anything wrong.

For vlogging at arm's length, you will often be at the wide end. For portraits, products and pictures of friends, step back and zoom in.

Use distance: close to your subject, far from the background

This is the free trick that works on every camera. The closer you are to your subject, and the farther your subject is from the background, the blurrier the background gets.

Digital Camera World said something similar about the newer ZV-1 II: at 50mm you can achieve some decent background blur if you are close to your subject.

Try this at home. Stand a friend right against a wall and take a picture. Then have them walk five or six big steps away from the wall, keep yourself the same distance from them, and take another. The wall in the second picture will look much softer, even with the same settings.

A simple recipe for a blurry background

1. Pick a spot with lots of space behind your subject: a long hallway, a park, or a room with the background far away.
2. Press C1 for Background Defocus and check that the Defocus icon is showing.
3. For photos of someone else, zoom in toward the long end and step back until focus locks.
4. Move closer to your subject if the camera will focus there.
5. If the picture looks too bright, press C1 for Clear or press MODE to leave the mode.

Each step adds a little more blur. You do not need all five every time. Use the ones that fit where you are.

Keep your subject sharp while the background goes soft

Blur only looks good when your subject is crisp. The ZV-1 includes Real-time Eye AF and Real-time Tracking AF. Its product showcase AF mode switches focus to an object you hold up to the camera while you talk.

If your face is soft too, the problem is focus, not blur. A thin depth of field leaves little room for error, so let the eye tracking do its job and keep your distance steady while you talk.

Sound is the other half of a good talking-head video. The ZV-1 has a 3.5mm mic jack. If you are shopping for a small wireless mic for vlogs, here is one option:

Other Sony vlogging cameras with a blur button

Many people searching for the ZV-1 also own, or are thinking about, another Sony ZV camera. The idea is the same across the family, but the details change.

Camera	Lens	How to leave Background Defocus
Sony ZV-1	24-70mm equivalent f/1.8-2.8	MODE button
Sony ZV-1F	20mm f/2	Still/Movie/S&Q button
Sony ZV-1 Mark II	18-50mm f/1.8-4	Still/Movie/S&Q button

On the ZV-1F and ZV-1 Mark II, Sony's Help Guides describe the same Defocus and Clear settings, with Clear locked at F5.6. Digital Camera World says the Bokeh Switch on the ZV-1 II switches to a wider aperture and uses digital blurring to soften the background.

The ZV-E1 also has a single background defocus button, which PetaPixel says shifts the aperture on the lens and is designed for creators who do not want to change aperture settings mid-roll. If you own a ZV-E10, see the Sony ZV-E10 Background Defocus guide, and for the newer model, the ZV-E10 II Background Defocus guide. If your ZV-E10 footage looks blurry in the wrong places, the ZV-E10 blurry photos and video fixes can help.

When the blur does not look the way you hoped

The background is still too sharp

Check that the Defocus icon is showing, not Clear. Then add distance: move your subject away from the background and move yourself a little closer. Zoom in if you can, since longer zoom settings help.

The whole picture is too bright

The locked aperture can stop the camera from finding the best exposure in some conditions. Switch to Clear, leave the mode with MODE, or move into some shade.

The camera will not focus after zooming

You are likely closer than the lens can focus at that zoom setting, since the 5cm minimum only applies at the widest setting. Step back a little and try again.

Every one of these is a normal part of learning. Each time you fix one, you understand your camera a little better, and the next blurry background will come a lot easier.