This aperture series from f/1.4 through f/11 shows the how well the Sigma 85mm f/1.4 DG HSM Art handles intense specular highlights. That is, flare but also how well detail and contrast are held in dark areas as well as color correction and the look of foreground bokeh on specular highlights and the point spread function.
Images up to 28 megapixels with many crops, all from f/1.4 through f/11.
(generic "85.0 mm f/1.4" for Sigma, Nikon and Zeiss lenses!).