10-26-2018, 11:46 AM
(10-26-2018, 11:05 AM)Brightcolours Wrote: Specular highlights don't really have 3D-properties. This test just makes clear how mechanical vignetting affects bokeh "ball" shapes ("cats eye", mirrorbox mechanical vignetting even), and that can also give a clue to the tendency of a lens to cause "swirly bokeh".
I think it makes a difference wether a highlight is close or far in relation to the focal pane, in size and in gradient. That's what I meant with 3d situation.