cherry blossoms

Aperture and Depth of Field with Cherry Blossoms /  by Todd Henson

An example of aperture and depth of field with cherry blossoms.

One of the early concepts we learn as photographers is the relationship between aperture and depth of field. Aperture is the opening in the lens (or camera) that light travels through to reach the sensor or film. And with most lens/camera combinations you can adjust the size of this opening both to create the exposure you desire and based on the depth of field you desire for the photo.

Aperture

The aperture opening is measured in f-stops. I don’t want to get into too much technical detail with this post, but f-stops are represented with values like this: f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, etc. The smaller the number the larger the aperture opening. So f/1.4 has a much larger aperture opening that does f/22, meaning much more light can enter the camera. This affects exposure, but it also affects depth of field.

Depth of Field

The depth of field is the amount of the photo that is considered acceptably sharp, with everything outside the depth of field getting progressively less sharp or more blurry. When it comes to the relationship between aperture and depth of field, the larger the aperture opening (the smaller the f-stop value) the less depth of field, meaning less of the photo will be in focus. Conversely, the smaller the aperture opening (the larger the f-stop value) the more depth of field, meaning more of the photo will be in focus.

Cherry Blossom Examples

You can see an example of this in the photo at the top of the post and duplicated just below. The top portion of the photo has an aperture setting of f/3. You can see the background is very out of focus. The bottom portion has an aperture setting of f/16. You can see the background is still out of focus, but less so. Artistically, which do you prefer? There’s no right or wrong answer, just personal preference. And knowing how to adjust the aperture to give you the depth of field you want lets you be more creative with your photography.

The top half has an aperture opening of f/3 with shallower depth of field, the bottom half has an aperture opening of f/16 with more depth of field.

Click the images below to step through photos created with different aperture openings. Notice the differences in the look of the background, and even sometimes the foreground as the aperture opening gets larger, letting in more light but resulting in less depth of field.

Lens and Still Life Examples

And just to help demonstrate this further we’ll take a step away from cherry blossoms and look at an example using some still life subjects. First, below is an example of what the aperture in the lens actually looks like at different f/stop values using a 50mm lens.

And now take a look at the still life examples where a photo was created at each aperture shown above. Step through both the lens photos above and the still life below so you can see how changing the aperture opening affects depth of field.

I hope this was helpful to some of you. Aperture is a great creative tool we have, so go out there and use it.

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Cherry Blossoms by the Jefferson Memorial /  by Todd Henson

Cherry Blossoms by the Jefferson Memorial

Spring has come to the region and it’s the time of year when many flowering trees bloom, such as the famous cherry trees in Washington, DC. There are usually many events surrounding the cherry trees, most associated with the annual Cherry Blossom Festival. But this year will be different. Many, if not all, of the events have been cancelled. I don’t know what the scene will look like this year, and I don’t expect I’ll be a part of it, but I thought I’d share how the scene looked in the Spring of 2011.

This photo was taken on April 2, 2011, along the shore of the Tidal Basin facing the Thomas Jefferson Memorial. I liked how the cherry blossoms reached overtop the paved path, hanging over the water, with people walking below them, sometimes stopping to photograph a group of blossoms. I was pleased to capture a couple of paddle boats in the scene. And I chose to partially obscure the Jefferson Memorial with the cherry blossoms. On this day there was still construction at the waterfront of the memorial. I’d have liked to capture an image without construction, but it doesn’t stand out too much, and it is what it is.

Overall, I’m pleased with the outcome, though I worry I may have done too much in post-processing. I worked on this image more than I do most, trying to create a realistic impression of the scene, but also push it a bit, trying for a more three dimensional look, enhancing contrast and color. It’s always a fine line when trying to create art as an idealized view of life, reflecting more what we felt at the time than exactly what we saw.

Let me know in the comments below whether you feel I pushed too far in post, or whether you think it works as it is. Would you have done anything differently?

Wherever you are I wish you well. Stay safe, and stay healthy!

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Cherry Blossom Crowds 2019 - Washington, DC /  by Todd Henson

Washington, DC Cherry Blossom Crowds along the Tidal Basin

Early each spring large crowds of people travel into Washington, DC hoping to see the cherry blossoms framing the Tidal Basin and scattered in many other areas around the capital. Some years and certain days of the week or times of day are more crowded than others, but if it’s cherry blossom season it’s a good bet there will be crowds of some size anytime you visit.

This year (2019) my brother and I visited DC on Saturday, March 30th, with peak bloom predicted to be April 1st. We took the first Metro into town, which arrived sometime around 8 am. This isn’t early from many a photographer’s perspective, but it is early as far as most folks are concerned. You will still find crowds at that time, but they will be smaller than those around noontime.

Washington Monument Cherry Blossom Crowds

The photos in this post give an example of how the crowds might look at different locations around the Tidal Basin. It was a clear day with no rain forecast, so there was nothing to keep people away, except perhaps for the Kite Festival on the Mall. I heard the crowds on the following weekend (April 6-7) were larger than those we saw.

This year there were several sections of grass that were fenced in, keeping people to the paved path around the Tidal Basin. I assume this was to let the grass regrow in these areas, as it can get rather trampled with all the foot traffic. Other areas were open, letting people wander under the trees.

Some of the monuments, such as the Martin Luther King, Jr. Memorial, have large open areas where people can gather. The FDR Memorial doesn’t have as many large open spaces but has lots of small to medium spaces.

Martin Luther King, Jr Memorial Cherry Blossom Crowds

Tidal Basin Inlet Bridge Cherry Blossom Crowds

It was nearing noon when we made it to the Jefferson Memorial, a favorite of the crowds. Its large extended steps are perfect places to sit and rest for a bit, watching the paddle boats out on the Tidal Basin. But the inside also draws large crowds. I’m not one for crowds, but these places are well worth visiting if you never have.

Cherry Blossom Crowds on the steps of the Jefferson Memorial

Cherry Blossom Crowds inside the Jefferson Memorial

Looking out at the Cherry Blossom crowds from the Jefferson Memorial

Jefferson Memorial Cherry Blossom Crowds

When leaving town just after noon it takes far more time to walk from the Tidal Basin back to a Metro stop than it does to walk from the stop to the Tidal Basin earlier in the morning. You’re stuck walking the speed of the general crowds, which always bunch up around crosswalks. I really feel for those crossing guards, having to manage so many people and vehicles all vying for the same space.

Cherry Blossom crowds while leaving Washington, DC

I hope this post has given you a realistic look at the crowds you might expect if heading into Washington, DC on a cherry blossom weekend. It may be more or less crowded when you arrive, but you should certainly expect some crowds. So give yourself time, bring along some water and a snack, and have patience. You’ll run into people of all sorts, but overall I’ve always found the majority of the crowds to be pleasant and polite. They’re typically there for the same reasons you are. So head into DC and enjoy your stay.

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