Day 160 Bokeh

Bokeh has been defined as "the way the lens renders out-of-focus points of light".

~Wikipedia

 刻意將鏡頭失焦，
就可以讓許多點光源呈現這種效果，
形狀則是跟光圈葉片的形狀或是鏡頭本身焦段有關係。