…or you can back up to frame a wider shot. To increase the depth of field, you can either choose a more distant subject… So if you shoot a distant subject, it’ll be much easier to get the entire scene sharp! If your focal point is far from the camera, you’ll get a deeper depth of field. If your focal point is close to the camera, then you’ll get a shallower depth of field. So while you should absolutely use aperture to adjust the depth of field, be on the lookout for blur. So if you’re after an ultra-sharp, deep-depth-of-field shot, you’ll want to use a narrow aperture.īut be careful extremely narrow apertures are subject to an optical effect called diffraction, which will degrade image sharpness. A wider aperture, such as f/2.8, will give you a shallow depth of field. Instead, select your focal length, frame your composition, and then use the next factor on this list to achieve the perfect depth of field: ApertureĪ narrower aperture, such as f/16, will produce a deep depth of field. Of course, changing your focal length will alter your field of view and therefore your composition, so you should rarely adjust your focal length to change the depth of field. So while it’s easy to keep an entire scene in focus with a wide-angle lens, you’ll struggle to do the same with a long telephoto. Let’s take a closer look at how each of these elements affects depth of field, starting with: Focal LengthĪ short focal length (e.g., 20mm) will give you a greater depth of field than a long focal length (e.g., 400mm). The distance between the camera and the point of focus. Your depth of field can change depending on three key factors: Thus far, I’ve talked about depth of field as if it were a fixed property.īut it’s not. Make sense? Factors affecting depth of field The front of the first tree would be sharp, and the rest of the trees would fade into softness. If you were to fire the shutter button on that camera, you’d get a photo with a sharp rock. So the plane of focus sits parallel to the sensor at that rock, and the limits of acceptable sharpness that form the edges of the depth of field lie in front of and behind that plane. A theoretical example showing the depth of field for a given focal length, aperture, and point of focus.
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