I try to recreate the circular distortion of an anamorpic lense like here
I know about this way to strech the bokeh vertically. Bokeh - From Horizontal to Vertical
and i have seen this one were a fisheye lense is used. https://code.blender.org/2014/08/anamorphic-bokeh/
and im using a lens distortion node in the compositor to achive additional realism. Is there a way to create this circular distortion in the bokeh without a fisheye camera?