![]() For any given aperture and camera-to-subject distance, the longer the focal length, the shallower the depth of field.Plus, wide apertures help to have nicer out of focus point of light. For a given camera, focal length and camera-to-subject distance, the wider the aperture, the shallower the depth of field. Prefer fast lenses with an aperture of f/2 or smaller.Use a large sensor camera: for a given focal length, lens aperture, and camera-to-subject distance, the larger the sensor the shallow the depth of field, making it easy to blur the background.If you cannot put much distance between the subject and the background, go closer to your target. The more distance you put between your subject and the background, the more blurred and smoother the background will be, even if you don’t have a very fast lens. Work the distance: camera-to-subject and subject-to-background distances should be carefully chosen.The idea is to play with the depth of field so that when your subject is sharp and in focus, the background looks blurred and smooth. The focal length, maximum aperture, number of blades in the diaphragm, and glass quality are all playing a role in getting bokeh.īut there are a few more things to consider. The lens you use is very important in achieving a good bokeh. Points of lights can be rendered round with wide apertures (top, f/2), while stepping down your lens will turn the circles into octagons, pentagons, etc, depending on the number of blades in the diaphragm (bottom, f/5.6). The number of blades of the diaphragm and the aperture used also affects the quality of the bokeh. (Image credit: Armin Kübelbeck on Wikimedia Commons CC-BY-SA). Typical donuts shaped point of lights from using a mirror lens. Mirror lenses (catadioptrics) are a typical example of weird (for some, bad) bokeh, as the point of lights are rendered as donuts rather than circles. Sure, I could make my son stand out more, but the blur I had on the background is not creamy, and there are plenty of distracting elements.Īnd if you look at how points of light are blurred, some lenses will give you nice round, smooth circles while others can render the point of lights with odd shapes. Particularly in portrait photography, photographers associate the quality of a lens bokeh to how “creamy” the blurred background looks like, that is how smooth it looks.Ī bad bokeh is a blurred background that still has some details in it, although smudged: light tree twigs, edges, etc. For this still life, I blurred the background to create a nice bokeh by blurring the lights on my Xmas tree I had in the background. By blurring them, you make them so big that they become crucial background elements. (Image credit: Unsplash)īut bokeh can also be used for crafting creative images by blurring points of lights present in the background. (Image credit: GoodFon) What Is The Bokeh Effect?īokeh can be used to help separate your model from the background. A nice Bokeh is crucial in macrophotography. The resulting effect can be pleasant or not.Īnd this (below) is bokeh. Increasing the distance between your model and background also increases the background blurriness. This technique is most often used in portraiture and can be achieved in many ways: by increasing the size of the lens aperture (smaller f-numbers), by choosing the focal length in relation to the camera-to-subject and subject-to-background distances.įor example, for a given camera-to-subject and subject-to-background distances, a wider aperture increases the blurring of the background when the focus is on your model. Here I have intentionally blurred the background to make it a bit distracting and to better isolate my daughter from the rest of the scene, making her stand out more. (Image credit: Unsplash) What Is The Difference Between Bokeh And Background Blur?īlurring the background is a common technique used to add depth to your image and let your target stand out more. Remember: in photography, bokeh is a creative effect you intentionally introduce in the image, either by shooting in a particular way or using a particular lens. Sometimes, bokeh is also referred to as the way the lens displays out-of-focus points of lights. In this image, the background is clearly out of focus, but that is a very poor bokeh effect and is very distracting. The two aspects are related but are not the same. Bokeh is a Japanese term that can be translated as Blur.īut a bokeh is not so much about having a blurred background as it is about the aesthetic quality of the blurring. ![]()
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