Simple remedy: stop down to f/2.5 or so when 'bright bokeh' may be present?
Canon 35L
Canon 85L @1.2 - clipped bokeh
More bokeh comments here:
http://www.1stwebdesigner.com/eight-photography-effects/
My point in all the above? You cannot have and both sharpness, and both amazing soft bokeh.
Sigma's come to mind on E-mount, at f/2.8, they are revered for sharpness, but not for bokeh. Almost any Zeiss lens has the same attribute, great for sharpness, including wide open, but not for soft bokeh. Leica (f/1.4) lenses that produce nice soft bokeh do also go quite soft there. Similar has been observed in Sony E30, E50 and FE35Z/1.4 and FE/55Z.
Otus wins by being f/1.4, whereas Batis is at f/1.8. I think that local, contrast and sharpness win over in the design, making this a wonderful lens. If bright bokeh object surface (daytime or highlighted background/lights), I would simply use it at f/2.5 or so.
Not even sure that this is a lens design problem. Bokeh in ZM lenses also trailed 'lower IQ' competition, but sharpness was amazing.
Funnily, you can likely get smoother bokeh from the FE70200, @200, than from the Batis @85 - just have sufficient light
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Cheers,
Henry