6 Tips for Controlling Depth of Field

Depth of field (DOF) is one of the most important factors in determining the look and feel of a photograph. It’s also the most overlooked for photographers moving from a point-and-shoot camera to a DSLR camera. With a DSLR, you have a huge amount of control over depth of field, and you should know how to utilize that control.

What is Depth of Field?

Depth of field refers to the distance (depth) from the focus point that a photo will be sharp, while the rest becomes blurry. A large, or wide, depth of field results in much of the photo in focus.

A small, or narrow, depth of field results in much more of the photo out of focus.

Neither approach is better or right, and which depth of field to use is up to you. You may have different reasons for choosing a certain depth of field, including artistic effect, bringing attention to a subject, or crisp representation of a scene.

There are four main factors that control depth of field: lens aperture, lens focal length, subject distance, and sensor size. Your sensor is pretty well set, so you won’t have much luck changing that. Your focal length and distance to the subject are usually determined by your choice of composition. So the lens aperture is your primary control over depth of field.

Before I get to the tips, let’s get a few things straight:

BIG APERTURE = SMALL F-NUMBER = SMALL DEPTH OF FIELD
SMALL APERTURE = BIG F-NUMBER = BIG DEPTH OF FIELD

Aperture Control

Large apertures (small f-numbers) cause a narrow DOF, while small apertures (large f-numbers) cause a wide DOF. To bring attention to a subject by blurring a background (selective focus), shoot with f-numbers like f/2.8, f/4, or f/5.6. To bring the whole scene into focus, shoot with f-numbers like f/16 or f/22.

Avoid Excess DOF

If you want to bring an entire scene into focus and keep it sharp, use a small aperture. But be careful not to go too small. Lens sharpness starts to deteriorate at the smallest apertures. Use enough to get what you want, and no more. You may have to experiment a bit to get a feel for how your camera and lenses work at different apertures.

Focus Point

The DOF extends behind and in front of the point of focus. It usually extends further behind than in front, though. So keep this in mind when choosing your focus point; you’ll want to focus about a third of the way into the scene rather than halfway.

Use a Tripod

As you stop down the lens for greater depth of field, you’re also letting less light into the camera. To compensate for this and maintain correct exposure, you’ll need to either use longer shutter speeds or a higher ISO. The ISO can only be increased so much before noise artifacts become an issue, so you’ll most likely want to lengthen your shutter speed. If your shutter speed is too long, you’ll need a tripod (or some type of stabilization) to deal with this.

DOF Preview

When looking through the viewfinder of a DSLR camera, you’re seeing the world through the lens. You can easily see your resulting composition and point of focus, but the depth of field you’re witnessing is a little false. You’re seeing the resulting depth of field for the largest aperture of the lens, no matter what f-number you’ve chosen. Most newer cameras have a feature called DOF Preview that allows you to stop the lens down to the chosen aperture so you can see the true depth of field.

Focal Length

As I mentioned, your focal length is usually determined by your choice of composition, but you should know how it affects your depth of field. Longer focal lengths (200mm) have less depth of field than shorter focal lengths (35mm). Just keep this in mind when you’re trying to achieve a certain depth of field—you may need to alter your focal length in addition to your aperture.

So there are your basic tips for controlling your depth of field when taking photographs. The best way to learn how to control DOF is to set your camera to aperture priority mode and go take some pictures. Photograph the same subject many different times while altering the aperture, point of focus, and focal length (if you have multiple lenses or a zoom lens). Either write down the settings you used for each picture or use software to view your camera’s settings while you look through the pictures on your computer. You’ll begin to see how these different factors affect your photos.

Street Photography Tips at Night- upgrade your photos.

Taking pictures at night gives an image a completely different feel because it captures different stories of daily life—sometimes more dramatic than the ones captured during the day. There is also a whole new cast of characters at night that make taking pictures on the streets after dark an even more adventurous experience in street photography.

Just by decreasing the available light, we increase the element of mystery in the image. Don’t get me wrong, it could still be an average image. Just because it was taken at night the picture won’t magically become a great photograph, but it might become a little bit more interesting. It may make the viewer ask just a few more questions. And depending on where you are, it may even add an element of danger.

“You don’t have to go looking for pictures. The material is generous. You go out and the pictures are staring at you.” –Lee Friedlander

Here are a few tips for taking street photos at night:

1. Don’t use flash

I think this is key for several reasons. First, the ugly artificial light that results from the flash is just too harsh and unnatural. It also calls way too much attention to the photographer, and the idea in street photography is to blend in, not stand out like a lighthouse. Also, people expect the flash to go off after you take a picture at night; when they don’t see the bright light coming from the camera that was pointed at them, they think that you didn’t take a photo and they probably won’t question you. I never use flash when I shoot at night (or day or ever, for that matter). It might take some practice but in a short time you won’t miss it.

2. Increase the ISO

More than a suggestion, this is a necessity. Unless you increase the ISO, the shutter speed might become too slow and the whole picture will be way too blurry to even see what’s going on. As I wrote before, a little bit of motion blur is fantastic and makes for great street photography shots. But if the photo’s too blurry it loses the effect and is just confusing.

High ISO will also give the image some “noise” and it will look grainy, which is a great look for street photography. Make grain and blur your friends, not your enemies.

“New images surround us everywhere. They are invisible only because of sterile routine convention and fear.” –Lisette Model

3. Use available light to your advantage

Find a bright corner or a storefront window and position yourself in a way that it will light your subject’s face. Or maybe you want the light to their backs to make them silhouettes. Either way is fine, the choice is yours. It’s all a matter of moving around the light. Find what works and wait for an interesting subject to walk by. Try pointing the camera into the inside of storefronts or brightly lit buses; the light may be just enough to capture great scenes of people unaware that you are capturing the scene.

4. Use fast lenses

Fast lenses, with maximum apertures such as f/2.8 or f/1.4 are great for low light situations. The same thing applies to full frame cameras. Any lens or camera is fine but full frame cameras or fast lenses make things easier because they have a better sensitivity to light. Use what you have and practice and look at the results before you invest your paycheck in a more expensive camera or lens.

“Anything that excites me for any reason, I will photograph; not searching for unusual subject matter, but making the commonplace unusual” –Edward Weston

5. Avoid isolated areas

It’s not necessary to go to a dangerous area to get interesting pictures. Any crowded area will do, especially if you are just starting.

Taking pictures on the streets at night is not the usual thing to do, but if you want to give your street photography a little extra excitement consider going out for a walk after the sunlight has been replaced by street lamps.

Do you follow the Process of Taking a Photo?

We divide the process into 4 steps: Camera Settings, Observation, Anticipation, and Experience.

Camera Settings

One of the best ways to be efficient in travel and street photography is to be fast; especially in Southeast Asia, where things are so busy. Mastering camera settings is the first step to becoming fast. This is the reason I advise my students to use aperture priority mode when shooting (at least during the day) and to always adjust their settings when entering a new light situation (a brighter or darker area).

Once this is done, it becomes something less to worry about when a photo opportunity presents itself. The photographer’s reaction will also be faster if they can find all buttons and functions instinctively, as the camera becomes an extension of the body. Knowing what aperture to use depending on the depth of field desired and the distance of the subject, finding the ISO button while looking through the viewfinder, etc. All these little things will help the photographer win seconds, which are vital and will make light work of a spontaneous shot.

The need to be very fast and know camera settings was essential to capture this ephemeral moment. (Photo by Etienne Bossot)

Observation

Every good travel or street photographer (not to mention photojournalist) is a great observer.

Being aware of their surroundings, the photographer will use a shorter time to make important decisions, such as how to use the natural light, or which foreground and background to use. This is necessary, mostly when composing an image involves the subject itself at the very end.

Observing and seeing this girl running down allowed me to pick up the proper background. (Photo by Etienne Bossot)

Anticipation

Once you’ve got camera settings and observation skills primed, anticipation is the next skill to master. Moving ahead in preparation of the photo concept, anticipating where a potential subject is going to be and where the light is going to move is key to shooting a great photo. This requires being physically fit enough to be able to move quickly, sometimes over holes, puddles, trees, walls, rivers, highways, magma, etc.

Being comfortable with camera settings will help win seconds, which are vital for the photographer. I often find that my students are missing great photo opportunities because they feel rushed. Mostly when traveling to exotic locations where everything is new, beautiful, and photogenic, they are often overwhelmed by all the great potential photos to be shot and rush to shoot as many things as possible. What happens then? The brain stops working. The result is a lack of discipline in creating composition, and as is very often the case, the use of the wrong camera settings (leading to a slow shutter speed and blurry photos).

Once the camera settings are prepared, the environment understood, and the photograph concept set up in the mind, it frees you up to think of the details and techniques that will make a great composition.

Man in a field that has just been plowed. When seeing that man from far away, I ran in order to have him right in front of the lush green background. (Photo by Etienne Bossot)

Experience

We tend to compose images using a few of the photography techniques we have learned, but mostly it’s an unconscious act of applying what we know that makes a good photo. For this we are using, as Michael Freeman mentions in his book, a “repertoire” of photos we have previously seen or taken and that we know work for us.

Using lines as diagonals, applying the rule of thirds, having our subject framed a certain way, etc. This is very important in order to be fast and make decisions; it also increases the risk of taking the same photo “template” over and over again.

Thus the need of extra time, gained by preparation, observation, anticipation and applying our experience, to adjust the composition and create something new, special, different, and reach another level of creativity.

Everything was ready and patiently prepared. Then the subject arrived… Click.

When a picture is no longer worth a thousand words- World is changing

Alan Kurdi’s tragic photograph did have a significant impact when it was widely circulated in 2015. It served as a poignant symbol of the refugee crisis stemming from the Syrian civil war and generated a wave of public empathy and outcry. The image of a lifeless child washed ashore on a beach was a powerful and heart-wrenching reminder of the human cost of conflicts and the desperation of refugees. It spurred discussions, awareness, and calls for action regarding the refugee crisis and the need for more humane immigration policies.

However, your point about the saturation of images and information in the media is valid. In a world where we are bombarded with images and news from various sources on a daily basis, it can be challenging for any single image to maintain a lasting impact. People may become desensitized to the constant stream of tragedies, and their attention may shift quickly to other news or events, including those that are more lighthearted or frivolous in nature.

Nonetheless, photographs can still be powerful tools for raising awareness and influencing public opinion. While the initial impact of an image may fade over time, it can still contribute to a broader understanding of ongoing issues and inspire discussions and actions. Activists, journalists, and organizations often use visual storytelling to keep important issues in the public eye and push for change.

In the cases of Syria, Ukraine, Gaza, and other conflict zones, the challenge is to sustain attention and action on the issues and individuals affected. It requires a combination of compelling visuals, consistent reporting, and advocacy efforts to maintain public awareness and support for those in need.

The phrase “a picture is worth a thousand words” is often used to suggest that a single image can convey complex ideas and emotions more effectively than a lengthy description. However, there are situations where a picture may no longer be worth a thousand words or may even be misleading or insufficient in conveying information. Here are a few scenarios where this might occur:

  1. Misleading or manipulated images: In the age of digital manipulation, images can be altered to convey false information or create misleading impressions. In such cases, a picture may not accurately represent the reality it claims to depict.
  2. Lack of context: A picture may not provide sufficient context to understand the full story. Without accompanying information or background, it may be open to misinterpretation.
  3. Complexity of the subject: Some topics or issues are highly complex and cannot be adequately conveyed through a single image. In these cases, words or explanations are necessary to provide a comprehensive understanding.
  4. Evolving situations: In rapidly changing or dynamic situations, a static image may quickly become outdated or fail to capture the ongoing developments.
  5. Abstract or conceptual ideas: Concepts or abstract thoughts may not easily translate into visual representations. Words are often better suited to explain these ideas.
  6. Personal interpretations: Different people may interpret an image in various ways, leading to a lack of consensus or understanding. Words can help clarify and provide a shared understanding.
  7. Emotional depth: While an image can evoke emotions, it may not always express the depth and nuances of human feelings as effectively as words can. Personal experiences and perspectives also play a significant role in emotional interpretation.

In these situations, a picture may not be worth a thousand words, and written or spoken language may be required to provide a more accurate, complete, or nuanced understanding of a subject. Words can provide the necessary context, clarification, and explanation that an image alone might lack.

10 Tips for Better Photos of Your Children- Must Read

Professional photography is a fantastic way to celebrate important moments in your life. It also allows all of the family members to be in the image as well. Finally, it creates true custom works of art. However, those images will account for a tiny fraction of the photographs that will take place in your life.

The majority of images are the everyday photographs families make themselves to capture moments and save them for the future. These are the images that tell the story of our lives. Here are some tips to quickly improve the images you take every day. Have fun experimenting with them and try a few of them each time you are out.

1 – Know Your Camera

One of the most common questions I get is “What camera should I buy for myself?” while the answer sometimes changes for specific situations, the best answer I can have is: “The one you will always have with you.” The moments we want to capture and save for ever are often not planned. They are spur of the moment and usually are fleeting; they disappear as quickly as they appear. Having a great camera that is too bulky for everyday use means it will be sitting at home when the action is taking place right now. Most of us have a very good camera built into our newest smartphones. The best thing you can do is learn how to use the camera you have right now. Learn how to turn it on and keep it a mode that is the best for spur of the moment shooting. Learn what the buttons do and why you would choose one mode over another. If reading the manual and practicing isn’t your style, invest a little bit of money in a video or attend a local photography workshop.

The goal is to become like a quick draw artist from the old west. Be able to get your camera out, into a shooting mode and ready to start firing images in just a few seconds. It only takes a little familiarity and a little practice with your camera to be able to do this. That way, when Johnny starts to pull a face at the clown on the street, or Jenny climbs into the flower bed, you can freeze that priceless moment and add it to the storybook.

2 – Get Down to Their Level

Adults see children from the same angle. We are looking down at them all the time. If you want to quickly change the impact of an image of child, get down low to their level. This accomplishes a few things. First, it allows us to see the world from their perspective. We get a new angle on the world and that is refreshing. Secondly, it puts them visually on the same level as our world, and that raises the impact of the image. Also, psychologically, it changes how they feel about the moment. When we get down on their level, they feel more equal, and that makes them feel happy. It can actually improve their expression in the image.

3 – Get Much Closer

A famous photographer, Robert Capa, once said, “If your images aren’t good enough, you aren’t close enough.” This is something you can prove to yourself with just a little experimentation. When we take a posed image of people, we tend to capture a lot of the image around the person. Next time you have the opportunity, take the picture you were going to take, but then start to move in (either with your feet or with zoom if you have it) and gradually get closer and closer, taking an image each time you get closer. Go until you think you are too close, and then keep going!

You’ll be surprised with how much character you can get in an image when you combine number 2 above, getting down to their level, with getting very close. Try getting so tight that you are cutting a bit of the head at the top and don’t have much below the chin at the bottom. You’ll be surprised with how nice those images look. Combine that with number 4 below, new composition, and you will be entering a whole new world of amazing images.

4 – Try New Compositions

One of the things we most often do is place the person or the person’s face dead center of the frame. This is called a bullseye composition. Another way to increase the quality of your images is to move off the bullseye. One concept photographers are taught regarding composition is called the rule of thirds. We divide our viewfinder into thirds, both horizontally and vertically. This creates a small grid with 4 points where the thirds interact with each other. If we place our subjects, or important parts of the subject such as the eyes, on these intersecting points, we get a stronger impact from our images. Many cameras have an option to turn on a grid in the viewfinder. This grid is usually the rule of thirds so it makes it very easy for you to change your composition while looking through the viewfinder. One tip, if you do use the rule of thirds for your composition with people, make sure people are looking towards the center of the image, and not off the edge.

5 – Be Very Patient

Being a professional photographer working with children, one of the first lessons we learn is that children are going to do what they are going to do. If we try and make them do otherwise, they react very strongly! If you are after a specific image, and a child is involved, you just have to be patient. If you force them to make the image when they are not ready, they will get upset. Even if they don’t cry or throw a tantrum, their unhappiness will be visible in the image and the results will not be what you were after. That only gives us a few other choices. We can find ways to encourage them to participate on their terms. We can get them excited about the image we are about to make or, if it is a really important image for you to capture, you can provide a reward for them doing what you would like them to do. The last thing we can do is wait until they are ready. No matter what, rushing or forcing them will give substandard results. If the particular image is not critical, then see our next tip about candids.

6 – Take Candid Images

The opposite of posed photographs are candid images. The goal with candid photographs is to capture our children doing exactly what they do, the way they do it. In a candid, the viewer of the image becomes an observer of a particular moment.

These actually are the best images for telling a story of our life. Posed images that show a location help to tell where were at a particular moment. Candid images show life as it is happening. We can have an image of Johnny sitting on the wall around the playground and get a sense of where Johnny was that day. But we don’t know what he did while he was at the playground, or whether he was enjoying it. Instead, if we have pictures of Johnny coming down the slide with his arms up in the air and a giant smile on, then we know where he was, what he was doing and that he was having a great time doing it. That image captures the full moment to look back on, and why it was a good moment. Follow your children around with camera in hand doing what they like to do, and you will not just capture a moment in time, but you will capture the joy and happiness that made that moment really special for both your child and you. Then when you look back at those images, you will be filled with the warmth of happy memories because you can feel that moment as an emotion, rather than a memory.

7 – Tell a Story

A great next step to taking a candid moment is to take a series of candid moments that tell a story of the event. Next time you take them for ice cream, have the camera in hand. Take a picture of Jenny getting here cone from the man behind the counter. Then another as she proudly shows you her cone held high like the Statue of Liberty holding up her torch. A few images of the joy they have while eating the cones. Another of the aftermath with faces all covered in ice cream and a few sprinkles. Now you have a series of images that tell a whole story. When you go back looking through your photo albums, you can experience the memory again as it unfolded. You can laugh at the smeared faces, or sniffle at the pout after the ice cream hit the floor. The stories are worth saving too.

8 – Show the Environment

Earlier, we talked about getting closer for strong impact, but don’t forget to vary things up in your albums. Take a few images that include the environment. This can be done either with posed or with candid images. Using the rule of thirds from before, if we place the subject on one of the lines, we still have almost two-thirds of environment that we can show. This can be a great part of creating your story telling series of images. In our ice cream visit from before, we can include the interior of the shop in some of the images to help show the environment that the story took place in.

9 – Capture the Memories

Professional photographers are there to celebrate the family milestones from an artistic perspective, and to show the growth of a family throughout its history. From engagement and wedding, to maternity and newborn, from 1st birthday to senior portraits, we are there to celebrate your milestones. You should focus on the memories. Linda McCartney said it best: “If you see something that moves you, and then snap it, you keep a moment.” If something makes you laugh, take a picture. If it makes you proud of your child, take a picture. Even when it makes you sad, take a picture. What you are really trying to do is capture the emotion of the moment. Then you can relive the whole moment again and again. If it moves you, capture it forever.

10 – Learn more about Photography

Learning more about photography can open a whole new world of possibilities up for you. Once you begin to understand the fundamentals of photography, you will find that you can use most of them to your advantage using any type of camera. By learning more about photography we can know how to blur out the backgrounds, or know how to freeze our children as they race around (or allow some motion blur for effect!). The more we know, the more we can do in general, and the more control we have over the finished image. Just like learning how your camera works, there are lots of ways to learn more about photography. You can get books from the library or the bookstore, learn about them online, attend a course or a local workshop, watch a video and so much more.

About the Author:
Matthew Davies is a professional portrait photographer based in Boulder, CO and runs Davies Creative Photography – a boutique portrait studio specializing in child and family photography. In addition, he teaches a series of affordable workshops on photography for all skill levels. He also has a special program for mothers about how to take better pictures of their children and is available to present at mommy groups in the area.