Sigma 35mm f/1.4 DG HSM: Aperture Series (Beater Bikes, D800E)
These two studies (aperture series with entire frame and also large crops) demonstrate what one can expect from the Sigma 35/1.4 DG HSM A1 in the f/1.4 - f/5.6 range in particular. They are a sort of visualization for sharpness, bokeh, depth of field, vignetting.
Both are found in DAP in my review of the Sigma 35mm f/1.4 DG HSM A1.