At 135mm f/1.4, its 17-element optical formula (2 aspherical, 4 ED) and Dual HLA motor yield critical sharpness and rapid AF. The 13-blade aperture produces smooth, circular bokeh, aided by weather sealing and an oil-repellent coating for tough conditions. Portrait shooters who need uncompromising subject separation will value this lens, despite its substantial 1430g weight.
