Do you want to capture photos that feature a stunning bokeh effect? You’ve come to the right place. In this article, I’ll explain everything you need to know about bokeh, including:
- What it is
- The perfect bokeh camera settings
- How you can produce bokeh for jaw-dropping results
I’ll also include plenty of bokeh examples along the way, so you know exactly what to expect in your own images. If you’re ready to become a bokeh master, then let’s get started!
What Is Bokeh In Photography?
Bokeh refers to the out-of-focus areas of an image, especially areas that are heavily blurred. For instance, look at the background of this shot:
Do you see how the greenery behind the subject has turned into a creamy, smooth blur? It looks nice, right? That’s the power of the bokeh effect. Note that, generally speaking, the term “bokeh” refers to any background (or foreground) blur in an image. So you can get beautiful bokeh (when the out-of-focus areas are smooth and stunning), or you can get bad bokeh (when the out-of-focus areas are too detailed or appear jagged). Later on in this article, I’ll explain what causes good versus bad bokeh, but for now, just know that not all bokeh looks equally gorgeous.
The 5 Factors Determining The Bokeh Effect In Your Photos
Beginners often struggle to capture lovely bokeh effects, and it’s because bokeh can be complicated; it’s not as simple as adjusting one setting on your camera and calling it a day. Instead, the bokeh quality in your photos is influenced by five factors:
- Aperture size (i.e., the size of the hole in the lens that lets in light)
- Lens choice
- Distance between the camera and your subject
- Distance between the subject and the background
- Quality of the background
Let’s look at each factor in turn, starting with:
The aperture is a hole in the lens, and the size corresponds to your camera’s f-number setting. A low f-number such as f/1.8 or f/2.8 will give you a wide aperture, while a high f-number such as f/11 or f/16 will give you a narrow aperture. Ultimately, a wide aperture will create a better bokeh effect – because the wider the aperture, the more background blur the lens will produce.
(A narrow aperture, on the other hand, produces images that are sharp from foreground to background; that’s why landscape photographers nearly always shoot at f/8 and beyond. They want everything in focus!)
So when you see beautiful bokeh images, they’re generally produced at f/4 and wider (and most are produced at f/2.8, f/1.8, or even f/1.2). Unfortunately, not all lenses allow you to shoot at ultra-wide apertures, as I explain below:
Certain lenses produce beautiful, creamy bokeh. Other lenses are rather underwhelming in their bokeh quality. Why? It has to do with several factors.
First, the larger the lens’s maximum aperture, the better the bokeh quality. As discussed above, if you can open your lens’s aperture really wide, the bokeh will look great – whereas a closed-down aperture will produce nervous, distracting bokeh that doesn’t complement the subject.
Second, some lenses offer more circular apertures, whereas other lenses have hexagonal, septagonal, or octagonal apertures. Because aperture shape generally determines the shape of the bokeh, the more circular the aperture, the smoother the bokeh effect.
(Note that aperture shape is primarily determined by the aperture blade count, which you can find on the specification sheet of every lens. More blades equal a more circular aperture, which in turn corresponds to more pleasing bokeh. Got it?)
Third, the longer the lens, the more it compresses the background, and the blurrier the background becomes. With bokeh, longer equals better. So for the best bokeh, purchase a lens with a long focal length (e.g., 200mm), a wide maximum aperture (e.g., f/2.8), and plenty of aperture blades (9+).
Distance Between The Camera And Your Subject
As you get closer to your subject, the background bokeh effect will magnify – and as you step away from your subject, the bokeh effect will disappear. So the closer you get, the better the bokeh effect. Now, you can get close to your subject in two ways: You can move toward them physically and literally bring the lens close. Or you can use a telephoto lens with a 300mm, 400mm, or even 800mm focal length. These lenses will zoom right up to your subject (and you don’t have to change your position).
The telephoto lens option is often convenient, especially if you’re working with skittish subjects (e.g., birds and wildlife). But sometimes it’s nice to get up close and personal, especially if you’re going for a more intimate perspective.
Distance Between The Subject And The Background
If your background is close to your subject, it will be less blurred – and hence the bokeh effect will be weaker. But if your background is far from your subject, it will be more blurred, and will generally look very nice.
Say you’re photographing a child in front of a tree. If you put them just in front of the tree (so the bark touches their back), both the child and the tree will be in focus, and you’ll get very little bokeh to speak of. But if you bring the child out and away from the tree, the bark will begin to blur.
In fact, increasing the subject-background distance is one of the easiest ways to create better bokeh, especially if you don’t own a wide-aperture lens. The farther your subject moves from the background, the more beautiful the result.
Quality Of The Background
Some backgrounds are easy to blur, and other backgrounds are much more difficult. This often works as you’d expect, where uniform elements (e.g., a forest of green leaves) create very smooth bokeh, while messy, jagged elements (e.g., a crowd of people, cars, and houses) create very distracting bokeh.
But there are other background qualities to consider, too. For instance, if you compose your image so that the light shines through an area of the background, you’ll often capture stunning bokeh effects. That’s how you can get a shot like this one:
Do you see how the light from the sky shines through the leaves in the background? It creates a very well-defined, circular bokeh effect, which a lot of photographers love.
Bokeh Photography Factors: Putting It All Together
The five factors I discussed above work together to achieve optimal bokeh quality. So even if you can’t adjust one factor (e.g., lens quality), you can still adjust other factors to get a nice result.
Of course, the best bokeh effect comes from maximizing each and every one of the factors discussed above, though this isn’t always feasible. Sometimes, you need a narrow aperture for an unrelated reason, or you need the subject to stay close to the background, or you can’t get close, etc. And that’s where you’ll need to consider the other bokeh factors and work with the ones you can control.
How To Achieve Nice Bokeh: The Step-By-Step Process
I’ve already explained the theory behind good bokeh, but in this section, I’d like to share, in practical terms, how to get the best possible bokeh for any given situation.
Use The Right Lens
Bokeh starts with lens choice. Go for a lens with a wide maximum aperture (ideally, f/2.8 or wider, but f/4 can work, too). If possible, pick a lens with a high number of aperture blades (remember: the more circular the aperture shape, the better!). And go with a standard or telephoto focal length, not wide angle.
Select A Large Aperture
Bokeh is only affected by one camera setting: the aperture. So make it count! For the strongest bokeh effect, dial in your lens’s lowest f-number. (Though if your lens goes to f/1.2 or f/1.4 and you’re shooting from up close, you may want to narrow the aperture just a bit to prevent your subject from going out of focus.)
If you’re not sure how to adjust the aperture, by the way, consult your camera manual. You’ll generally need to shift the mode dial to Manual mode or Aperture Priority mode, then rotate the corresponding aperture dial until it gives you the result you want (though some lenses offer an aperture ring on the barrel, which you can turn to manually set the aperture).
Get Close To Your Subject
Determine the subject you want to photograph, then get close. Remember, you can either move close physically, or you can use a long lens for a tighter perspective.
If you have the time, try both; the effect will be slightly different in each case (longer lenses compress the background, which gives smooth bokeh, but you may lose a bit of intimacy), and you may find you prefer one look over the other.
Position Your Subject For The Best Background
If you can move your subject (or, in the case of portraits, if you can ask your subject to move), then put them in front of a uniform, non-distracting background. And bring them far away from the background, so the bokeh effect is more pronounced.
If you can’t move your subject, then try to adjust your perspective. By getting down low, you can remove distracting background details from the frame; by moving to the side, you can increase subject-background distance; and so on.
Dial In Your Remaining Settings For A Good Exposure
At this point, you’ve done everything you can for the best-possible bokeh. So determine the remaining settings you need for a good exposure (e.g., your shutter speed and your ISO). Focus on your subject. Check one last time to ensure the background doesn’t include any distractions.
And take your photo! After you capture a shot or two, check your camera’s LCD. Pay careful attention to the quality of the background. Ask yourself: How does the bokeh look? Is there anything I can change to make it better? Make the necessary changes, then shoot again.
Bokeh Photo Examples
Below, I’ve included a few images with nice bokeh so you can see exactly what you can achieve with the right approach.
First, we have a photo with the lens focused somewhere between the foreground grasses and the background people. Note that both the foreground and background are blurred in a nice bokeh pattern, though the blur isn’t extremely strong.
In this next shot, I’ve focused on the subject’s feet and used a wide aperture. Note how the feet are sharp, but the rest of the image is blurred (it’s a fun trick that I highly recommend you try!):
Also, I occasionally prefer my bokeh in the foreground, not the background. Instead of focusing on a close subject, I focus on a distant subject (the father and son) but include a large object in the foreground (the tree). A wide aperture serves to blur out the foreground object, and the background subject looks nice and sharp.
Of course, there will be times when bokeh isn’t desirable. Sometimes you want the entire shot in focus from front to back, like in this family portrait:
So while bokeh is great, and while I highly recommend you learn to create a nice bokeh effect, don’t get so obsessed that you use it all the time!
How To Get A Bokeh Effect: Final Words
Hopefully, you now feel ready to head out with your camera and capture some stunning bokeh. Just remember to choose the right lens, adjust your camera settings, position yourself well, and pick the right background. Pretty soon, you’ll be shooting bokeh like a pro!
originally posted on digital-photography-school.com by Annie Tao
About Author: Annie Tao is a Professional Lifestyle Photographer in the San Francisco Bay Area who is best known for capturing genuine smiles, emotions and stories of her subjects. You can visit Annie Tao Photography for more tips or inspiration.