Those who are put a photography as their interest must be familiar with this art aesthetic quality of the blur called “bokeh”. Comes from the Japanese word boke (暈け or ボケ), which means "blur" or "haze".
Bokeh is what happens away from the point of best focus while sharpness is what happens at the point of best focus.
Good bokeh doesn't happen automatically in lens design. Good bokeh is especially important for large-aperture lenses, macro lenses, and long telephoto lenses because they are typically used with a shallow depth of field.
There are two types of Bokeh
> Circular (Hollywood) Style:
( Where the bright highlighted ares become s completely circular in the blurred out background ).
Any lens can deliver Hollywood bokeh, it occurs when the background have bright highlight, it will cause circular bokeh except the subject you are photographing at.
> Creamy Bokeh / Cream Cheese Bokeh
( Where the background of the subject are completely washed and blurred out creating”gradient “effect)
How do we get those bokeh ?
It’s all depend of the distance between your subject and the front element of the lens . The closer you get, more blurry your background gets. Using the highest aperture ( from f/1.4 to f/2.8) will get the better blurry background.
How to See Bokeh In Existing Images ?
If they all blend together nicely, that's nice bokeh. If they are perfect little circles, then that's neutral bokeh. If they are all swimmy and look little little rolled up condoms or donuts, then that's bad bokeh (kenrockwell)
Getting bored with Creamy Style Bokeh? let's play with the Hollywood Style Bokeh using the Xmast light. It's really fun!
7D / (50/f1.4 ; 28/f1.8; 75-300)