From great lighting to flashes, filters and other accessories, there are a myriad of ways to improve your photos. For anyone with a X Series camera, however, one of the most powerful ways to enhance your subject is to manipulate the depth of field.
What is Depth of Field?
Simply put, the depth of field is the amount of the picture the photographer keeps in focus. While laypeople may assume the entirety of a shot should be in focus, experienced photographers know that letting the background blur can actually draw more attention to the subject.
Image by Clèment Breuille via Instagram
How to Control Depth of Field
Like shutter speed and exposure, depth of field can be controlled by manipulating settings on your camera – specifically the aperture setting. The aperture is an opening in your camera’s lens, which opens and closes similarly to the dilation of the pupils in our eyes. As the aperture gets smaller, the depth of field grows, meaning more of your image comes into focus.
In addition to your aperture setting, your distance from the subject and the focal length of your lens will impact your depth of field. Since the depth of field is focused around the subject, the closer the subject is to your camera, the shallower that depth will be. Likewise, the longer your lens’s focal length (the more you zoom in), the shallower your depth of field, given any aperture setting and distance.
Overall, these three attributes – aperture setting, distance and focal length – are all crucial for achieving the exact depth of field you desire. Changing the aperture setting is the most common route, but don’t be afraid to back up, move in, and zoom in and out!
Image by @chandrasentosa via Instagram
Changing Settings
When it comes to changing the aperture setting, it’s important to understand that the aperture width and specification are inversely related. Wider settings are represented by smaller numbers, and vice versa.
The settings themselves are typically presented in F-numbers, often-called F-ratios or F-stops, which are a measure of lens speed. For instance, a lens with a 100mm focal length set to an F-stop of 10 has an aperture diameter of 10mm. Setting that same lens to F20 would give it an aperture diameter of 5mm, while setting it to F5 would result in an aperture diameter of 20mm.
Overall, the smaller the F-number, the wider the aperture – and the shallower your depth of field will be. If you really want to zero in on your subject, leaving the background blurry and obscured, you’ll need a small setting. If you want most or all of the picture to be in focus, you’ll need a high setting.
Image by @matt_ellis via Instagram
Choosing Your Aperture
Which depth of field is right for your next shoot? The answer will depend on your subject and goal. Portraits typically feature shallow depths of field, focusing primarily on subjects’ faces. The same is often true for weddings, parties and other events, where you’re trying to separate the subject from a bustling background.
On the other hand, you’ll need a deep depth of field to see details in both the background and foreground. Landscape shots are a perfect example.
Also important to note: depth of field is not evenly distributed in front of and behind your subject. Even with all the adjustments you can make to the aperture setting, distance and focal length, your field is usually about one third in front and two thirds behind your focal point. The field becomes more equal as your focal length increases, but as we discussed before, it also becomes shallower.
Image by @chels_e_buns via Instagram
The Right Tool for the Job
Photographers often refer to bokeh, the blurred, out-of-focus background quality that makes pictures incredibly lifelike and vivid. If you want your shots to have bokeh, you’ll need a lens capable of the widest aperture settings.
Fujinon’s XF series lenses are perfect for the job. Featuring aperture settings as low as F1.2, these lenses allow for beautiful close-ups that will stun your viewers. With a wide aperture range, they’re also versatile enough to be used for wide range of projects.
If you want to learn more about the range of Fujifilm products, check out our 2017 Buying Guide.
Photography is art. Whether you’re capturing the soul of another in a portrait, or the essence of our world in a landscape image. What you capture on a sensor is reflective of how you perceive our shared environment. A camera, in other words, is akin to a painter’s brush. Perhaps this is why we place so much importance on our tools. We want to wield a brush that will help us achieve what we see in our minds. I love the analogy of a painter and a photographer especially when considering the use of Fujifilm for one of my brushes.
You see, one of the reasons I bought into the Fujifilm X System was because of how I thought it’d allow me to obtain a certain aesthetic. Sure, I loved the retro look, the portability, the easy access of essential controls, the fact that it was supremely sharp; but there was more to it than these common Fuji-loves. As an artist I draw a lot of inspiration from the work of old masters. I find their aesthetic as timeless and powerful. The use of light and contrast in their paintings to be awe inspiring. I wanted to achieve with my camera and lens something close to what they were able to produce with a brush and canvas. Enter the tools I prefer to wield for a master aesthetic: the X-T1 and X-Pro2.
Fujifilm’s X-Trans APS-C sensor has a few advantages in regards to capturing light. One of the largest advantages is how well it can get everything in focus when compared to one of its full-frame counterparts. A crop frame essentially increases your depth of field while you are also able to bring in more light to the sensor with an equivalent aperture and focal length. Why is this an important factor, even for portraits? Because having your scene in focus allows your viewer to get a better idea of the entire area your subject is in. A story can unfold before your viewer with better ease. Of course, you can achieve a deep depth of field with larger sensors, but you’ll lose out on light and sometimes even enter into diffraction issues depending on your scene. I’m sure some of you are wondering, “but what about the bokeh?!” Sure, bokeh can be nice for a headshot and even in environmental portraits. Bokeh offers a great way to force a viewer to look at the subject. Though, I feel as though there is a stronger element to draw attention to a subject: light. Breaking out of the bokeh-mold you’re able to expand upon your use of light. 
The X-Trans sensor also has an oddity about it that I have not found on a Bayer patterned sensor: it produces sharp images that have an almost a brush stroke feel to them. Some will point out that it is due to my processing an image in Lightroom and Adobe’s refusal to really figure out how to sharpen an X-Trans sensor. There could be some truth to that and from what I’ve read online, most people aren’t impressed by this interaction between camera and processor. I, however, enjoy this look and use it to my advantage. The images produced by a Fujifilm sensor seem to come together in a different manner than my images from other sensors.
Since I am a large fan of natural light I really love cameras that are able to take what I throw at them in terms of needed dynamic range. With Fujifilm, I love how easily I’m able to bring down the highlights and get a nice overall exposure. This puts me shooting my exposure a little to the right more often than I’m used to, but it’s great to be able to see a clean sky in my images. There is also the DR setting which gets baked into the RAW files and even allows some more pushing of the files if need be. This is especially useful when using harsh lighting.
There you have it, some of the greatest reasons of why I love my Fujifilm cameras and why they are able to capture the moments I love.