We talked a bit in the past about how your camera’s crop factor affects the focal length of your lens.
But your camera’s crop factor—a measure of the amount that a scene is cropped based on the size of the camera’s image sensors image sensor—affects more that focal length. The crop factor also has an indirect effect on the depth of field.
Here’s how it works. The larger the camera sensor, the closer you have to get to your subject to get the same level of subject magnification. And the closer you are to your subject, the shorter the depth of field. So that means that, for a given aperture size, the depth of field decreases as the sensor size increases.
I know that all this can be a bit confusing, but a new video from Tony Northrup helps explain this relationship.
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For the last several posts, we have been talking about exposure and how we can use it to creatively change the look of our photos. And in our previous post, we looked at using the aperture settings to change the depth of field of an image.
n the last few weeks we have been talking about exposure and the settings that control it.
In this post, we’ll look at the aperture setting, another of the exposure controls, and see how you can use it to enhance your photos, direct focus onto your subject and give your images a sense of dimension.
In our last post, we talked about shutter speed and how it affects the way motion is portrayed in an image.