The depth-of-field is the distance between the nearest and the farthest objects that appear to have acceptable sharpness in an image. So again, the bigger the f-number, the smaller the aperture, and the darker the image, the smaller the f-number, the larger the aperture, and the brighter the image. Moving forward, reducing the aperture reduces the brightness, and as you notice, the values on the second and last images are f/8 and f/22. In the example below, you can see how the aperture affects the brightness of an image (exposure).įrom left to right, the initial “small” value of f/2.8 allows more light to enter the camera and hit the sensor. And that’s something that confuses a lot of photographers in the beginning, but it’s a super important thing to get right from the start. The bigger the f-number the smaller the aperture. The smaller the f-number the larger is the aperture. Take a look at the chart and find the catch. Those are f-stops and describe the size of the aperture. You might have noticed before that your camera viewfinder displays some numbers such as f/2, f/5.6, f/11, and so on.
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Let’s now introduce the concept of f-stop and how to measure aperture.
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When taking a photo, your lens diaphragm opens up for a certain amount of time ( exposure time), and it allows the light to hit the camera sensor and record the image. The aperture affects the brightness (exposure) and the depth-of-field on a photo. f/2, f/4 … f/22, etc.) The Effect of Aperture on a Photograph How to Measure the ApertureĪperture is measured in f-stops or f-numbers (e.g. The aperture of a lens is the size of the opening that allows light through into the camera body. Before we jump straight into the details, let me make a few points A perture Definition