>>3924060>They began to focus on background blur a little bit moreBokeh quality is not the same as defocus transitions, one is the visual characteristic the other is the "gradient" in which a focused area turns into out of focus.
Sigma lenses are sharp as hell but notorious for also having "sharp" transitions which look like shit, hence why some people only use the Art lenses for portrait because the subject and the background are far away from each other.
Sigma lenses have very cool bokeh, soft and dreamy, but the transitions are an insult.