Shallow depthof field

Model the use of visual organizers (e.g., Venn diagrams, compare and contrast charts, sorting mats) when comparing and contrasting data.

Depthof fieldexamples

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Notice and name when students use comparative language and the contexts in which they use this language, including the terms (e.g., “I see you have compared the toys and found all of the ones with wheels.”

Now that we have a firm grasp on what depth of field is, we can explore how to adjust it. The ability to control it will allow you to photograph various subjects in various situations, making you a more professional and well-rounded image maker.

A short focal length (or wide-angle lens) will usually have a deeper depth of field. And a longer focal length, like a telephoto lens, will often have a more shallow depth of field. You can see below as the lens gets longer, the image around the subject gets blurrier.

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Depthof fieldphotography

Depth of field is a spectrum and it provides a number of different tyes of camera focus. For a complete breakdown of the available options, watch our episode of The Shot List that is dedicated to depth of field and camera focus.

Depthof fieldphotography formula

Use the language of comparing and contrasting (e.g., “These toys are alike because they all have wheels.” “The car is different from the boat because it does not have wheels.”)

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This strategy helps students develop critical thinking skills as they sort, organize and classify things in different ways.

Depthof fieldphotography aperture

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Though this isn’t always true. How far away the camera is from the subject will also affect this. But if we increase the length of the lens and keep the same camera-distance, then this remains the case.

If you want to deliberately create creative looking blur in your shots, check out our next article on the Bokeh Effect. Now that you have a better grasp on depth of field and aperture, bokeh won’t be too complicated to learn.  Time to level-up your skill set!

The larger the hole, the more light gets in, and the smaller the hole, the less light. Also, the larger the aperture, the blurrier the image, the smaller the aperture, the sharper the photo or video.

Depthof fieldphotography examples

It's really that simple: aperture, focal length, and distance to the subject. When you understand how the combination of these settings work in tandem, you can start capturing professional and dynamic looking images with even the most basic equipment.

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Comparing and contrasting are ways of looking at things to determine how they are alike and how they are different. Comparing involves identifying similarities and/or differences (e.g., apples and oranges are both fruit) whereas contrasting involves comparing two or more objects or events in order to show their differences (e.g., an apple has a thin skin that we can eat; an orange has a thick skin that we cannot eat).

Name and notice the connection between comparing/contrasting and other skills students use daily, such as observing, classifying, graphing, identifying patterns, and evaluating.

Draw conclusions about their comparisons (e.g., “I compared the information from this website to the information in the book from the library. The website information is more current.”; “It took longer for the ice to melt in that container than it did in this one. So that container is better for keeping your drink cold than this one.”)

There are multiple ways to adjust depth of field, including aperture, the distance between the camera and the subject, the focal length of the lens, and even the size of the camera’s sensor.

If you have a small aperture, where the opening is tiny, (a high f/stop), the greater the depth of field, and the sharper the background. This is often referred to as a “deep” or “large” depth of field.

Depthof fieldphotography settings

Understanding what depth of field is and how you can use it will expand your skill set, and enhance the quality of your photos and videos. Let’s first define it and then we’ll get to some real-life examples.

A shallow depth of field refers to a small area in focus. Often the subject is in focus, while the background is blurred. This is best for portraits, and one way to adjust this is with aperture.

If you’re hoping to become a great photographer or videographer, utilizing every tool at your disposal is the safest and smartest way to get there. One tool that can level-up your skill set is depth of field. Understanding depth of field is tantamount to not only craft, but to your creativity as an artist. Knowing how to produce sharp images, and when to place objects out of focus, can help you get the shots you want consistently and with intention. But what is depth of field? And what else do you need to know about your camera to use it?

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Shallow depthof fieldphotography

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The closer the camera is to your subject, the more shallow the focus will be. The background will be blurry and out of focus.

Provide opportunities in multiple contexts for students to compare and contrast a variety of objects, places, events, sources of information, behaviours, etc.

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Model the use of comparative thinking and language (e.g., using words such as: compare, contrast, too, also, both, alike, the same, different, instead, unlike, etc.).

Recognize that they compare and contrast objects and events in their day-to-day interactions and activities (e.g., “These are all things that floated and these are all things that sank.” “My tower is taller than your tower.” “This is a better solution. The others would all work but we have all the materials we need to do this one.”)

You can do a ton of really cool things when you know how to use aperture, camera distance, and focal length to manipulate your DoF. With a mastery of depth of field in your toolbox, you're well on your way to becoming a stronger and more creative photographer.

A deep depth of field captures a larger area in focus, often keeping everything in the image sharp and clear. This is best for landscapes by using a large aperture.

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Knowing that there are many options to manipulate depth of field, you can approach your next shot list with these in mind. Before we get into how each factor can help you adjust your depth of field, watch this quick video covering the basics on how to actually achieve these options.

Depth of field is the area of acceptable sharpness in front of and behind the subject which the lens is focused. Put simply, it refers to how blurry or sharp the area is around your subject.

Aperture works in connection with two other key players — shutter speed and ISO. Knowing how these elements work together will give you full grasp on how aperture works.

Aperture is the opening of the lens through which light passes. When you hit the shutter release button to take the picture, a hole opens to capture the image. The aperture is the size of that hole. Aperture affects the light of the image and the sharpness.

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