# What Creates Better Bokeh? The Ultimate Guide to Creamy Background Blur **By Chanuka Nayanajith** · 2026-09-30 Better bokeh is not created by one camera setting. A wide aperture can increase background blur, but the final look also depends on how close you are to the subject, how far the background is behind it, your focal length and framing, the optical design of the lens, aperture shape, and the background itself. There is also an important distinction: **more blur does not automatically mean better bokeh**. Background blur describes how far an area falls out of focus. Bokeh describes the visual character of that out-of-focus rendering—whether it looks smooth and calm, busy and outlined, circular, polygonal, swirly, or something else. Once you separate those two ideas, creating the look you want becomes much easier. ## What Actually Creates Better Bokeh? For practical photography, think about bokeh as two related problems. - **How much blur do you want?** Aperture, focusing distance, subject-to-background distance, focal length, framing, and camera format all influence this. - **How should that blur look?** Lens design, aperture shape, optical aberrations, highlight rendering, and the visual texture of the background become especially important. For the amount of defocus specifically, Sony's [Factors of Defocus guide](https://www.sony.com/electronics/support/compact-cameras-dsc-w-series/dsc-w380/articles/00267923) identifies aperture, focal length, focusing distance, and distance to the background as four important practical controls. You can therefore photograph the same subject with two lenses that produce similar background separation but give the blurred areas noticeably different character. ## 1\. Use a Wider Aperture When You Need More Separation Aperture is the most familiar control for background blur. When the other important variables remain similar, opening the lens from a setting such as f/5.6 to f/2.8 or f/1.8 reduces depth of field and allows the background to fall further out of focus. This is one reason fast prime lenses are popular for portraits. A 50mm f/1.8 or 85mm f/1.8, for example, gives the photographer access to wider apertures than many variable-aperture kit zooms. But the widest aperture is not automatically the best aperture for every photograph. If you want a deeper explanation of how aperture values affect light and depth of field, see [what an f-stop means in photography](/blogs/aperture/what-is-an-f-stop-the-ultimate-beginners-guide-to-aperture). At very shallow depth of field, one eye may be sharp while another falls outside the acceptable focus range. A person's eyelashes might be sharp while the iris is not. Groups, moving subjects, close-up photographs, and subjects that need front-to-back detail may require stopping down. The better approach is to open the aperture only as far as the photograph allows. If f/1.4 produces more blur than you need but unreliable focus, f/2 or f/2.8 may create a stronger final image. ## 2\. Increase the Distance Between Your Subject and the Background Before buying another lens, change your positioning. Subject-to-background distance is one of the most powerful ways to improve background separation. Imagine photographing a person standing almost against a wall. Even with a relatively wide aperture, the wall may remain recognizable because it is close to the focus distance. Move the person several metres away from that same wall and photograph again. The background can become substantially softer without changing the camera or lens. This works outdoors too. Instead of positioning a portrait subject directly beside a hedge, tree, building, or fence, look for an angle that gives you open space behind the subject. A distant row of trees, city lights, foliage, signs, or textured architecture can dissolve into much smoother shapes than the same objects placed immediately behind the person. ## 3\. Get Closer to the Subject Focusing distance matters as well. As you focus closer, depth of field generally becomes shallower. This is why a kit lens can sometimes create much stronger background blur than beginners expect. Rather than photographing a small subject from far away, move closer while remaining within the lens's focusing limits, fill more of the frame with the subject, and place the background farther behind it. The effect becomes particularly obvious in close-up and macro photography. At high magnification, depth of field can become so shallow that photographers often need to stop the aperture down rather than open it further. For portraits, do not move extremely close with a wide-angle lens simply to chase blur. Camera position also changes perspective and can make facial proportions look exaggerated. Choose a camera distance that gives the subject a natural appearance first, then use the other controls to shape the background. ## 4\. Understand What Focal Length Really Changes Longer focal lengths are commonly associated with creamy portrait backgrounds, and they can be extremely effective. An 85mm, 135mm, or 200mm lens can produce strong subject separation while showing a narrower, more magnified portion of the background. However, saying that a telephoto lens itself “compresses perspective” is incomplete. **Perspective is determined by camera position.** When photographers switch to a longer lens and then move farther away to maintain similar subject framing, that change in camera position changes the perspective. The longer lens also captures a narrower angle of view, so less of the background is included and individual background elements appear larger in the frame. Combined with a suitable aperture and enough subject-to-background distance, this often creates the smooth, simplified backgrounds associated with portrait telephotos. Do not judge focal length independently of framing. Comparing a 35mm photograph taken from one metre away with an 85mm photograph taken from several metres away changes multiple variables at once. ## 5\. Sensor Size Affects Depth of Field, but Not Bokeh Quality by Itself Full-frame cameras can make very shallow depth of field easier to achieve when you compare photographs with similar framing at the same f-number. For example, maintaining a similar field of view on full frame and APS-C normally requires a different focal length or camera position. Under equivalent framing conditions, those changes can give the larger format a shallower-depth-of-field advantage at the same f-number. That does not mean APS-C, Micro Four Thirds, or other formats cannot create beautiful bokeh. A fast lens, suitable focusing distance, longer focal length when appropriate, and generous space behind the subject can produce excellent separation on smaller formats. More importantly, **sensor size does not determine whether the blur itself looks smooth or nervous**. That part is strongly influenced by the lens and the scene. For more context, see the AAAPresets guide to [full frame vs APS-C cameras](/blogs/photography-basics/full-frame-vs-aps-c-cameras-what-should-beginners-choose). ## 6\. Lens Design Determines the Character of the Blur This is where “better bokeh” becomes more subjective. Two lenses can have the same focal length and maximum aperture yet render their out-of-focus areas differently. Lens designers must balance sharpness, aberration correction, contrast, size, focusing performance, cost, and the appearance of defocused areas. When judging a lens for bokeh, look beyond how blurry the background becomes. Examine: - How smoothly sharp details transition into blur. - Whether branches, grass, text, and other high-contrast details develop distracting double edges. - Whether out-of-focus highlights have smooth interiors or visible rings and texture. - How bright the edges of bokeh discs appear compared with their centres. - Whether highlights remain circular as you move toward the edges of the frame. - How the rendering changes when the aperture is stopped down. Some photographers prefer extremely smooth modern rendering. Others deliberately choose lenses that swirl, glow, create unusual highlight shapes, or retain visible optical character. Better bokeh therefore partly depends on the image you are trying to make. ## 7\. Aperture Blades Affect Out-of-Focus Highlight Shape The aperture diaphragm becomes especially noticeable when you photograph point light sources such as fairy lights, street lamps, reflections, or sunlight filtering through leaves. When the lens is wide open, the physical aperture opening may already be close to circular. As the lens is stopped down, the aperture blades form the opening and can make out-of-focus highlights appear more polygonal. Rounded aperture blades are designed to maintain a more circular opening across part of the aperture range. Nikon's [guide to bokeh](https://www.nikonusa.com/learn-and-explore/c/tips-and-techniques/bokeh-for-beginners) also explains how diaphragm shape affects the appearance of out-of-focus highlights. Blade count alone is not a complete bokeh rating. A lens with more blades is not automatically superior to every lens with fewer blades. Blade curvature, optical design, aberration correction, focusing distance, aperture setting, and the scene still matter. ## 8\. Choose the Background Before You Blame the Lens A good lens cannot make every background visually calm. Thin branches, dry grass, fences, railings, lettering, and other high-contrast patterns can remain visually busy even when they are out of focus. A simpler background often creates more attractive bokeh than an expensive lens pointed toward a chaotic scene. Before taking the photograph, scan the area behind the subject and look for: - Greater physical distance. - Large areas of consistent colour. - Soft foliage rather than dense overlapping branches. - Small point highlights that can become bokeh discs. - Light that separates the subject from the surroundings. - Background elements that do not appear to grow out of the subject's head or body. Moving a metre left or right can sometimes improve the background more than opening the aperture another stop. ## How to Get Better Bokeh With a Kit Lens You do not need an f/1.2 prime to practise these techniques. 1. Use the longer end of your zoom when the composition allows it. 2. Move closer to the subject while maintaining a flattering perspective and staying within the minimum focusing distance. 3. Set the lens to its widest available aperture. 4. Move the subject well away from the background. 5. Choose a simpler section of the background. 6. Look for distant point lights, reflections, or small bright areas if you want visible bokeh discs. 7. Focus carefully on the most important detail, such as the nearest eye in a portrait. A 55mm f/5.6 kit lens with excellent subject placement can sometimes produce a more attractive background than a faster lens used with the subject directly against a wall. ## A Simple Bokeh Test You Can Do With Any Lens Instead of judging a lens only from specifications, create a repeatable test. 1. Place a person or object several metres in front of a background containing foliage or small lights. 2. Keep your camera position, subject position, focal length, and focus point as consistent as possible. 3. Take a photograph at the widest available aperture. 4. Repeat one or two stops down. 5. Inspect both the amount of blur and the shape of individual highlights. 6. Repeat the test in a second setup where the background is much closer to the subject. 7. Compare the transition into blur, highlight shape, edge texture, and overall visual distraction between the two setups. This quickly demonstrates why background distance can be just as important as aperture. It also reveals how your particular lens behaves rather than relying on a generic claim about a focal length or f-number. ## Should You Always Shoot Wide Open? No. The objective is not to produce the maximum possible blur. It is to create enough separation for the subject while retaining the details that need to remain sharp. For a close headshot, your lens's maximum aperture may create such a thin focus zone that important facial features fall outside acceptable focus. Stopping down slightly can improve the portrait while still leaving the background beautifully soft. Stopping down can also change the shape of highlight bokeh, improve some optical aberrations, and alter overall lens sharpness. Try several apertures rather than assuming the lowest available f-number must always be best. ## Can You Improve Bokeh in Lightroom or Photoshop? Software can add or strengthen a shallow-depth-of-field effect, but it is useful to distinguish this from optical blur created at capture. Current Lightroom Classic versions include Lens Blur tools that generate a depth map to separate focus and blur regions. The tool provides multiple simulated bokeh styles along with controls for blur strength, focus range, and manual refinement. Adobe's [Lightroom Classic Lens Blur documentation](https://helpx.adobe.com/lightroom-classic/desktop/process-and-develop-photos/lens-blur.html) explains the current controls in detail. These tools can be useful when the original background is only slightly distracting, but inspect hair, transparent objects, clothing edges, foliage, and overlapping subjects carefully. Because the depth map is estimated, generated blur may occasionally misread boundaries or produce transitions that differ from the optical defocus created in-camera. Colour grading can also make existing bokeh more visually effective without adding extra blur. Controlling background brightness, saturation, white balance, and contrast can help the subject stand out while preserving the photograph's original depth-of-field rendering. ## Common Bokeh Mistakes - **Using a wide aperture but placing the subject against the background:** create more physical separation first. - **Assuming full frame automatically means beautiful bokeh:** format affects depth-of-field possibilities, while the lens and scene strongly influence rendering quality. - **Buying the fastest lens available without considering focus:** extremely shallow depth of field is not useful if the important part of the subject is soft. - **Calling every blurry background bokeh:** blur amount and bokeh character are related but different ideas. - **Ignoring the background before shooting:** distracting branches, signs, and bright edges can remain distracting even when defocused. - **Believing focal length alone creates perspective compression:** camera position controls perspective. - **Judging a lens only by aperture-blade count:** complete optical rendering matters more than one specification. - **Adding excessive software blur:** unrealistic edges and incorrect depth transitions can make the subject look cut out. ## Quick Recipe for Stronger, Cleaner Bokeh If you want a practical starting point, use this order: 1. Choose a clean background. 2. Move your subject farther away from it. 3. Choose your camera position for flattering perspective. 4. Use an appropriate focal length for the composition. 5. Move closer if the framing and perspective allow it. 6. Open the aperture until you have enough separation. 7. Check that the important parts of the subject remain sharp. 8. Look at the background edges and highlights, not just how blurry they are. This sequence is often more effective than simply setting the camera to the smallest available f-number. ## Final Thoughts Better bokeh comes from combining technique with lens rendering. Wider apertures, closer focusing, longer focal lengths in suitable compositions, and greater subject-to-background distance can increase the amount of blur. Lens design, aperture shape, highlight rendering, and background texture determine much of its visual character. Start with placement before buying new equipment. Move the subject away from distracting objects, choose your camera position carefully, experiment with focal length, and test several apertures. Once you understand those relationships, you can create attractive background separation with far more equipment than the usual “buy an f/1.2 lens” advice suggests. When editing, treat colour and tone adjustments as a way to complement the depth already present in the photograph. Software Lens Blur can be useful when needed, but capturing clean separation in-camera gives you the strongest starting point. Written by Asanka — creator of AAAPresets, serving more than 10,000 customers. **Tags:** Background Blur, Bokeh, Depth of Field, Lens Choice, Photography Tips, Portrait Photography --- > Source: [aaapresets](https://aaapresets.com/blogs/depth-of-field-bokeh/what-creates-better-bokeh-the-ultimate-guide-to-creamy-background-blur)