What is bokeh?

Bokeh (pronounced “boh-keh” or “boh-kay” — photographers disagree) is the aesthetic quality of the out-of-focus areas of a photograph. The word comes from the Japanese “boke,” meaning blur or haze. In photography, it describes not just the presence of background blur, but how pleasing that blur looks.

This distinction matters. All lenses can blur a background. Not all lenses render that blur attractively. Bokeh is about the quality of the blur, not the quantity. Two 50mm f/1.4 lenses from different manufacturers can produce identical shallow depth of field but look noticeably different in the character of their out-of-focus areas — one smooth and creamy, the other harsh and distracting. That difference is bokeh.

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Smooth bokeh vs. busy bokeh

Bokeh is most commonly described as either smooth or busy. Smooth bokeh appears uniformly soft regardless of what’s in the background — grass, foliage, tree branches, or points of light all dissolve into a gentle blur without visible texture or pattern. Busy bokeh retains more shape and texture in the blur, sometimes creating distracting lines or patterns. Common culprits of busy bokeh are chain link fences, tree branches in direct sunlight, and similarly structured backgrounds that the lens can’t fully dissolve even when throwing them out of focus.

What makes bokeh good or bad

Good bokeh typically has a creamy, smooth appearance with soft transitions between tonal areas and between the in-focus and out-of-focus zones. The blur should feel like it belongs in the image — it draws attention to the subject rather than competing with it.

The bokeh discs — the circular shapes created by out-of-focus specular highlights or points of light — are one of the clearest indicators of a lens’s bokeh character. Good bokeh discs are uniformly bright, smoothly edged, and round. They have no harsh outlines, no bright rings at the edges, and no light or dark spots in the center.

Bad bokeh has harsh outlines on those discs, bright edge rings, internal lines, or polygonal shapes instead of smooth circles. The background also tends to look busy — not blurred enough to disappear but too blurred to read clearly, leaving an uncomfortable middle ground that competes with the subject.

The Konica Hexanon example above shows what polygonal bokeh discs look like — six straight aperture blades produce hexagonal shapes instead of circles, which most photographers find less pleasing. The shape comes directly from the number and curvature of the aperture blades, which we’ll cover below.

Bokeh versus depth of field

These two concepts are often conflated, but they’re not the same thing. Depth of field refers to how much of the scene is acceptably sharp — a function of aperture, focal length, and subject distance. Bokeh refers to the character of the areas that are out of focus.

An f/1.4 lens will produce shallower depth of field than an f/2.8 lens, and that shallower depth of field often makes the bokeh more impressive simply because more of the background is blurred further. But the bokeh quality itself — smooth vs. busy, the shape of the discs — depends on the optical design of the specific lens, not just the aperture. Two 85mm f/1.4 lenses can have identical depth of field and still render the out-of-focus areas completely differently.

How to create better bokeh with any camera and lens

Use the widest available aperture

Regardless of which lens you’re using, you’ll get the smoothest, most blurred background at the lens’s maximum aperture. As you stop down, more of the background comes into focus and starts competing with the subject. Some lenses exhibit slight softness at their widest aperture on the in-focus subject, but for the purpose of background rendering, wide open almost always produces the most pleasing result.

The comparison below shows the same scene at different apertures — the difference in background rendering is immediate:

Use a longer focal length

All else being equal, a longer focal length throws the background out of focus more than a wider one. The more you zoom in or increase focal length, the more compressed and blurred the background becomes. To maximize bokeh with any lens, step back from the subject and zoom in rather than stepping close and shooting wide.

Get close to your subject and keep the background far away

Two distance relationships affect bokeh simultaneously: the distance between camera and subject, and the distance between subject and background. Minimize the first and maximize the second.

The closer you are to your subject, the more blurred the background becomes for a given aperture and focal length. This is why macro photography produces some of the most extreme bokeh available — at minimum focusing distances, depth of field collapses to millimeters and backgrounds dissolve completely.

Moving your subject away from the background has an equally significant effect. A subject standing two feet in front of a wall will have a sharper, more visible background than the same subject standing ten feet in front of the same wall at the same aperture. Separate the subject from the background whenever you can.

Choose a background carefully — even blurred ones matter

Blur doesn’t fix a bad background — it just softens it. A background with distracting colors, bright spots, or strong lines will still draw the eye even when blurred, because the viewer’s attention is pulled toward those elements even without being able to read them clearly. Avoid bright, shiny elements and strong lines crossing the frame behind your subject.

Also note that your viewfinder often shows a stopped-down preview, not the wide-open depth of field your final image will render. Switching to live view, or using your camera’s depth-of-field preview button, shows you what the bokeh will actually look like before you fire.

Use a fast prime lens

Kit zoom lenses typically have a maximum aperture of f/3.5–5.6, which limits both depth-of-field control and bokeh quality. A fast prime lens of f/1.8 or wider gives you significantly more background separation, and high-end prime lenses are generally designed with more attention to out-of-focus rendering than budget zooms. An 85mm f/1.8 prime on a full frame body is one of the most accessible combinations for portrait bokeh — useful, widely available, and not particularly expensive relative to what it produces.

Choose a lens with rounded aperture blades

The shape of out-of-focus highlight discs is determined by the number and curvature of the aperture blades. A lens with six straight blades produces hexagonal bokeh discs. A lens with seven or more curved blades produces rounder, more circular discs that most photographers find more pleasing. When evaluating a lens for bokeh character, look for nine or more rounded blades for the smoothest circular disc rendering.

Use a larger sensor

Sensor size affects depth of field, which in turn affects how much background blur you can achieve. Full frame sensors produce shallower depth of field than APS-C sensors at equivalent fields of view and apertures, because achieving the same framing on full frame requires a longer focal length, and longer focal lengths at equivalent apertures produce more background blur. This doesn’t mean APS-C can’t produce excellent bokeh — it can — but full frame has a practical advantage in achieving extreme separation at moderate apertures.

For more on how sensor size and aperture interact with depth of field, see our guides on aperture and full frame vs crop sensors. The complete Learn Photography hub covers all of these fundamentals in sequence.

Frequently asked questions about bokeh

How do you pronounce bokeh?

The most widely accepted pronunciation is “boh-keh” with a short, clipped second syllable. Some photographers say “boh-kay,” which is also common and understood universally. It comes from the Japanese word “boke” meaning blur or haze. Either pronunciation is correct in practice — no one is going to correct you on a shoot.

Can you get bokeh with a kit lens?

Yes, though it’s more limited than with a fast prime. To maximize bokeh with a kit lens: shoot at the widest available aperture (f/3.5 on most kits), zoom to the longest focal length, get as close to your subject as the lens allows, and maximize the distance between your subject and the background. You won’t get the separation of an 85mm f/1.4, but working all four variables together produces noticeably better results than ignoring them.

What is the best lens for bokeh?

The classic portrait focal lengths — 85mm and 135mm at f/1.4 or f/1.8 — are widely considered among the best for bokeh on full frame. The Canon EF 85mm f/1.2 L, Nikon 105mm f/1.4 E, and Sony FE 85mm f/1.4 GM are frequently cited for their bokeh quality specifically. For more affordable options, the 85mm f/1.8 offerings from Canon, Nikon, and Sony all produce very good bokeh at a fraction of the price of their f/1.4 counterparts.

Does bokeh look different on mirrorless vs DSLR?

The sensor size and lens optics determine bokeh character, not whether the camera has a mirror. A Sony A7 IV with an 85mm f/1.4 lens will produce essentially the same bokeh as a Canon 5D IV with the same focal length and aperture, because the sensor size and optics are what matter. Native mirrorless lenses designed specifically for the shorter flange distance sometimes show improvements in bokeh rendering because the optical formula can be optimized differently, but the camera body itself isn’t the determining factor.

Is more bokeh always better?

No. Extreme background blur can make environmental portraits feel disconnected from their setting, reduce context that adds meaning to the image, and occasionally make it unclear where the subject even is. Good bokeh serves the image — it separates the subject clearly and keeps the background from competing. Sometimes a stopped-down aperture with a softer but more readable background tells the story better than f/1.2 bokeh that dissolves everything behind the subject into colored blobs. Use it as a creative tool with intention, not as a default setting.