Bokeh is often most visible around small background highlights, such as specular reflections and light sources, which is why it is often associated with such areas. [6] However, bokeh is not limited to highlights; blur occurs in all regions of an image which are outside the depth of field.
Basically, bokeh is the quality of out-of-focus or “blurry” parts of the image rendered by a camera lens – it is NOT the blur itself or the amount of blur in the foreground or the background of a subject.
Bokeh is defined as “the effect of a soft out-of-focus background that you get when shooting a subject, using a fast lens, at the widest aperture, such as f/2.8 or wider.”
Everything you ever wanted to know about capturing dreamy, beautiful bokeh. Learn how to level up your images with refined background blur.