Secondary effects: Bokeh (暈け)

Photographers have taken a word from Japanese, bokeh (暈け), pronounced “BOW-kah”), to describe the quality of the out-of-focus regions in a photograph.  Bokeh is roughly translated as “blur.”


Photographers judge the quality of the bokeh in photographs.  Here is a comparison of three different lenses’ bokeh.

Most people consider the left image to have the most pleasing bokeh.

Next: Tertiary effects