Introduction

The Lumix S 85mm F1.8 is a fast short-telephoto prime lens for the Panasonic, Sigma and Leica “L-mount” full-frame mirrorless camera system.

The Panasonic Lumix S 85mm F1.8 lens features a bright f/1.8 maximum aperture and has 9 rounded diaphragm blades for smoother bokeh.

It is comprised of 9 elements in 8 groups, including 2 ED (Extra-low Dispersion) lenses to prevent axial chromatic aberrations.
…
Continue here:
https://www.photographyblog.com/reviews/panasonic_lumix_s_85mm_f1_8