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I hope this helps. We’ve discussed several different ways to change the depth of field. This can greatly improve your images. If you have any questions, please share below!
Depth offield photography formula
We’ll have another look at this photo, where I am very close to the subject. Again, the eyes are in focus, but things closer or farther are not in focus.
A creative question. Excellent. By controlling the depth of field, we can focus the viewer’s attention on a specific subject or place. This is powerful, and it’s a lot of fun! This makes controlling depth of field one of the most creative decisions that we can make.
Depth offield photography
In this photo of Joshua Tree National Park at night, everything is reasonably far away, and therefore all is sharp and in focus.
Or sometimes, you might see a lens that has two numbers, such as 28-300mm. This means that the lens does not have a fixed focal length. You can change it by zooming in or out.
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The below photo has a medium aperture of f/8. This is a common aperture for photographing things like street photography or landscapes where you want a lot of the scene that is farther away from you in focus.
All I’ve done here is use the zoom feature. The f-stop and location of the camera are the same. I’ve simply zoomed in to the tea cups, keeping the focus point the same.
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While I doubt any of us will use this WEB site while out in the field it appears to be useful for acquiring a sense of focus range
Each lens has a focal length written on it. You may have seen a lens of 15mm, which is a very short focal length. Or you might have seen that a lens is 300mm, which is a very long focal length.
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Depth offield photography settings
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Depth offield examples
Thank you for the guidance. There is a WEB site at which you can input the lens Focal Length, the f-stop, and distance to a particular object that you want to be in focus. The calculator then provides the near and far distances for which the scene is sharp:
A shallow depth of field means that many elements in a photo may be out of focus. The photo below has a shallow depth of field because only the area around her eyes are reasonably in focus.
I am a night photographer. I drive long hours in a dusty car listening to weird music, stay out all night creating photos, get dirty, hang out with other creative sleep-deprived weirdos, see the stars drift across the sky and always find the best taco stands while photographing forgotten abandoned locales and amazing nightscapes. I have three books published with one more on the way. My images have appeared in National Geographic Books, Omni magazine, Los Angeles Times, Westways magazine and numerous other publications. I also teach night photography workshops, which includes light painting, star trails, and much more.
Those are very educational, thanks for the DOF Master site. That sort of instant feedback is good for learning for sure.
Aperture is the opening of the lens. The larger the opening, the more light comes in. But it also affects how clearly we see certain things.
Shallowdepth offield photography
A long focal length ( like 30mm) will result in a shallower (narrower) depth of field. Here, less of the tea cups are in focus.
Depth of field, sometimes written as DoF, is the amount of distance that is reasonably in focus. It’s the range of area that is acceptably sharp in a photo.
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Depth offield photography examples
Here’s what’s fascinating. You know this intuitively already. When you squint your eyes, you’re making the “aperture” of your pupil smaller. Less light is entering your pupil, but the way it enters the pupil and focuses in your eye creates a slightly clearer image.
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Another way to control depth of field is by changing the focal length. If you have a zoom lens, you can change the focal length by simply zooming in or out, bringing the subject closer or farther. If you have prime lenses where the focal length is fixed, then you can change the focal length by changing your lens.
Depth offield photography aperture
I’ll show you some photos. While viewing these, remember that a higher number like f/22 means that the aperture is smaller, while a smaller number, like f/2.8, means that the aperture is larger. That was confusing to me when I first began, but you get used to it. Let’s have a look at three photos.
We’re going to discuss depth of field. But I’m going to try and keep it really simple. When I’ve given workshops and busted out charts, most people’s eyes glazed over. So … no charts. Just photos.
Up to now, I’ve mentioned how to achieve these different looks by discussing aperture, focal length and distance from the subject. Now, let’s look at this another way. Let’s look at this by what appearance you wish to achieve.
Shallowdepth offield
The depth of field typically changes gradually. It typically does not occur where the subject is in focus, and suddenly — BAM! — something is out of focus. No. It’s gradual.
A short focal length ( like 15mm) will result in a deeper (wider, broader) depth of field. Here, more of the tea cups are in focus.
The further away you are from things, the broader the depth of field. You know this intuitively because if you are standing with things far away, everything appears sharp and in focus.
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The below photo has a large aperture of f/2.8. It’s letting a lot of light in. See how the depth of field is shallower and only a small amount is in focus?
A deep depth of field means that there’s lots of elements in focus. For example, a photo of a landscape that is reasonably far away typically has everything in focus, such as the photo below. After all, if we look at a landscape, typically most of it does look in focus to us, doesn’t it?